Lucene - Core
  1. Lucene - Core
  2. LUCENE-5612

LockStressTest fails always with NativeFSLockFactory

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Blocker Blocker
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.8, 4.9, 6.0
    • Component/s: core/store
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      I was looking at this, because i wanted to remove the static map inside NativeFSLockFactory (no particular reason: it just smells bad, we require java7, and you get overlappingexception as of java6 so its unnecessary).

      Before changing any code, i wanted to run lockstresstest first, just to ensure it works: but it fails always. Simple works fine always.

      Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: lock was double acquired at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:67)

      1. LUCENE-5612.patch
        19 kB
        Robert Muir
      2. LUCENE-5612.patch
        16 kB
        Robert Muir
      3. LUCENE-5612.patch
        14 kB
        Robert Muir
      4. LUCENE-5612.patch
        10 kB
        Uwe Schindler
      5. LUCENE-5612.patch
        8 kB
        Robert Muir
      6. LUCENE-5612.patch
        6 kB
        Michael McCandless
      7. LUCENE-5612-instant-crush.patch
        5 kB
        Robert Muir
      8. LUCENE-5612-instant-crush.patch
        5 kB
        Robert Muir
      9. LUCENE-5612-more-sophisticated-crusher.patch
        19 kB
        Uwe Schindler
      10. LUCENE-5612-more-sophisticated-crusher.patch
        18 kB
        Uwe Schindler
      11. LUCENE-5612-more-sophisticated-crusher.patch
        18 kB
        Uwe Schindler
      12. LUCENE-5612-more-sophisticated-crusher.patch
        14 kB
        Uwe Schindler
      13. LUCENE-5612-more-sophisticated-crusher.patch
        12 kB
        Uwe Schindler
      14. LUCENE-5612-more-sophisticated-crusher.patch
        12 kB
        Uwe Schindler
      15. LUCENE-5612-tester.patch
        2 kB
        Uwe Schindler
      16. LUCENE-5612-tester.patch
        2 kB
        Uwe Schindler

        Activity

        Hide
        Robert Muir added a comment -

        I think we should have a test running this thing with multiple processes.

        One way would be with the smoketester as a start. Better would be a java unit test that spawns processes (like TestIndexWriterOnJRECrash)

        Show
        Robert Muir added a comment - I think we should have a test running this thing with multiple processes. One way would be with the smoketester as a start. Better would be a java unit test that spawns processes (like TestIndexWriterOnJRECrash)
        Hide
        Michael McCandless added a comment -

        This also fail for me! This is bad: it's the default lock factory for all our FS dirs.

        I'll add this to smoke tester; this is insanity.

        Show
        Michael McCandless added a comment - This also fail for me! This is bad: it's the default lock factory for all our FS dirs. I'll add this to smoke tester; this is insanity.
        Hide
        Robert Muir added a comment -

        This doesn't happen on 2.4, though i hit a different exception from a client, i dont see two guys holding the same lock:

        Exception in thread "main" org.apache.lucene.store.LockReleaseFailedException: failed to delete src/test-n-test.lock
        at org.apache.lucene.store.NativeFSLock.release(NativeFSLockFactory.java:311)

        Show
        Robert Muir added a comment - This doesn't happen on 2.4, though i hit a different exception from a client, i dont see two guys holding the same lock: Exception in thread "main" org.apache.lucene.store.LockReleaseFailedException: failed to delete src/test-n-test.lock at org.apache.lucene.store.NativeFSLock.release(NativeFSLockFactory.java:311)
        Hide
        Robert Muir added a comment -

        I think we should fix this for 4.8, since locking is broken out of box.

        One practical solution would be to default to Simple, if we don't want to delay the release figuring it out.

        Show
        Robert Muir added a comment - I think we should fix this for 4.8, since locking is broken out of box. One practical solution would be to default to Simple, if we don't want to delay the release figuring it out.
        Hide
        Uwe Schindler added a comment - - edited

        OK, I delay the release!

        We can add a test case, if we do it in the same way like TestIndexwriterOnJRECr*u*sh (spawn 2 VMs). I would not do this in smoke tester, as this should be tested with our test suite. We should also test the other lock factories with this approach.

        Smoke tester is not enough, because it does not work on Windows, so we definitely have to test this in our default test suite. I will try NativeLockFactory now on Windows.

        Show
        Uwe Schindler added a comment - - edited OK, I delay the release! We can add a test case, if we do it in the same way like TestIndexwriterOnJRECr*u*sh (spawn 2 VMs). I would not do this in smoke tester, as this should be tested with our test suite. We should also test the other lock factories with this approach. Smoke tester is not enough, because it does not work on Windows, so we definitely have to test this in our default test suite. I will try NativeLockFactory now on Windows.
        Hide
        Uwe Schindler added a comment -

        As Robert said, we should cleanup the code and remove the static set. Also we should use FileChannel.open() (Java 7).

        If we want to fix this in Lucene 4.7.x, we should simply default to SimpleFSLockFactory there (as quick fix). We should not try to backport to Java 6, we should rewrite the code for Java 7 and modern operating systems (lots of shit is there to work around bugs in some O/S).

        Show
        Uwe Schindler added a comment - As Robert said, we should cleanup the code and remove the static set. Also we should use FileChannel.open() (Java 7). If we want to fix this in Lucene 4.7.x, we should simply default to SimpleFSLockFactory there (as quick fix). We should not try to backport to Java 6, we should rewrite the code for Java 7 and modern operating systems (lots of shit is there to work around bugs in some O/S).
        Hide
        Uwe Schindler added a comment -

        One idea for the test, I trying to set this up as a quick try: We can use ANT's parallel task and spawn several Java with fork=true.

        Show
        Uwe Schindler added a comment - One idea for the test, I trying to set this up as a quick try: We can use ANT's parallel task and spawn several Java with fork=true.
        Hide
        Michael McCandless added a comment -

        I think the bug is in NativeFSLock.close(): we first release the lock, and then we delete the file. But in that window, if another process obtains the lock, our deleting the file lose the lock?

        I commented out path.delete() and the lock stress test is happy.

        Show
        Michael McCandless added a comment - I think the bug is in NativeFSLock.close(): we first release the lock, and then we delete the file. But in that window, if another process obtains the lock, our deleting the file lose the lock? I commented out path.delete() and the lock stress test is happy.
        Hide
        Uwe Schindler added a comment -

        Here is my quick tester for ant as patch. Its not yet useable for a real test (because it never ends). We can only do this as a test, if we have some break condition.

        To run, change to lucene/core and execute "ant test-lock-factory".

        The test works on Windows, although after a long time it crashes with some Buffer problem (I think the server or client has a leak and does not close all file descriptors of the socket, because it complains about no more connections).

        On linux it fails quite quickly with a double aquired lock.

        Show
        Uwe Schindler added a comment - Here is my quick tester for ant as patch. Its not yet useable for a real test (because it never ends). We can only do this as a test, if we have some break condition. To run, change to lucene/core and execute "ant test-lock-factory". The test works on Windows, although after a long time it crashes with some Buffer problem (I think the server or client has a leak and does not close all file descriptors of the socket, because it complains about no more connections). On linux it fails quite quickly with a double aquired lock.
        Hide
        Robert Muir added a comment -

        Thanks Uwe, this looks cool. On windows it makes sense it passes, since we can't delete the open file...

        An interesting thing here: in this case "act-like-windows" is bad. We should consider randomizing "act-like-windows" in MockDirectoryWrapper for this kind of reason i think?

        Show
        Robert Muir added a comment - Thanks Uwe, this looks cool. On windows it makes sense it passes, since we can't delete the open file... An interesting thing here: in this case "act-like-windows" is bad. We should consider randomizing "act-like-windows" in MockDirectoryWrapper for this kind of reason i think?
        Hide
        Michael McCandless added a comment -

        We should consider randomizing "act-like-windows" in MockDirectoryWrapper for this kind of reason i think?

        +1

        Though in this case we aren't using Directory APIs to impl the lock right? But still I agree in general we should sometimes "acts-like-unix"!

        If the timeout is hard in ant, we can always fix the LockVerifyServer / LockStressTest to pass a timeout...

        Show
        Michael McCandless added a comment - We should consider randomizing "act-like-windows" in MockDirectoryWrapper for this kind of reason i think? +1 Though in this case we aren't using Directory APIs to impl the lock right? But still I agree in general we should sometimes "acts-like-unix"! If the timeout is hard in ant, we can always fix the LockVerifyServer / LockStressTest to pass a timeout...
        Hide
        Robert Muir added a comment -

        Right, sorry I wasnt referring to any lock tests.

        I just meant that in general "preventing" deletes to a file could hide bugs in tests. For example today, what if IndexFileDeleter tries to delete stuff it should not? Would we ever know? Perhaps some test would fail, but its sketchy territory.

        Show
        Robert Muir added a comment - Right, sorry I wasnt referring to any lock tests. I just meant that in general "preventing" deletes to a file could hide bugs in tests. For example today, what if IndexFileDeleter tries to delete stuff it should not? Would we ever know? Perhaps some test would fail, but its sketchy territory.
        Hide
        Steve Rowe added a comment -

        Smoke tester is not enough, because it does not work on Windows,

        I'm not sure what you mean, Uwe - I just ran the smoke tester against the 4.7.2 RC2 on Win7+Cygwin, and it passed:

        SUCCESS! [1:27:12.254268]

        Show
        Steve Rowe added a comment - Smoke tester is not enough, because it does not work on Windows, I'm not sure what you mean, Uwe - I just ran the smoke tester against the 4.7.2 RC2 on Win7+Cygwin, and it passed: SUCCESS! [1:27:12.254268]
        Hide
        Robert Muir added a comment -

        I think Uwe might refer to the fact that on windows, LockStressTest will pass (e.g. this bug does not impact windows) because windows prevents one process from deleting another's lock file.

        Show
        Robert Muir added a comment - I think Uwe might refer to the fact that on windows, LockStressTest will pass (e.g. this bug does not impact windows) because windows prevents one process from deleting another's lock file.
        Hide
        Uwe Schindler added a comment -

        I'm not sure what you mean, Uwe - I just ran the smoke tester against the 4.7.2 RC2 on Win7+Cygwin, and it passed:

        Cygwin is not windows. It does definitely does not work with a real Win32 binary. On cygwin with cygwin python it works, because all filenames are forward slashes without drive latter and so on.

        If you fix this to work in windows (Cygwin is No-go for me, because java itsself is not cygwin compatible), i would run smoketester on window jenkins (which has no cygwin!!!!!), but only ever with a real windows python compiled against win32 kernel API (not a fake-glibc wrapper).

        But this is a test that should run in our test suite. And the ANT task is so simple, very easy to setup parallel runs. It is just a timeout missing, so the test can end after a while.

        Sorry, -1 to add this to smoketester only

        Show
        Uwe Schindler added a comment - I'm not sure what you mean, Uwe - I just ran the smoke tester against the 4.7.2 RC2 on Win7+Cygwin, and it passed: Cygwin is not windows. It does definitely does not work with a real Win32 binary. On cygwin with cygwin python it works, because all filenames are forward slashes without drive latter and so on. If you fix this to work in windows (Cygwin is No-go for me, because java itsself is not cygwin compatible), i would run smoketester on window jenkins (which has no cygwin!!!!!), but only ever with a real windows python compiled against win32 kernel API (not a fake-glibc wrapper). But this is a test that should run in our test suite. And the ANT task is so simple, very easy to setup parallel runs. It is just a timeout missing, so the test can end after a while. Sorry, -1 to add this to smoketester only
        Hide
        Robert Muir added a comment -

        The ant task did not work on my computer (I tried it). I dont know the problem, it just hangs.

        There are also other problems, like it uses hardcoded port number, and what not. Maybe the test should be like the jvm-crasher after all... we could then test in terms of "iterations" rather than wall clock time.

        Show
        Robert Muir added a comment - The ant task did not work on my computer (I tried it). I dont know the problem, it just hangs. There are also other problems, like it uses hardcoded port number, and what not. Maybe the test should be like the jvm-crasher after all... we could then test in terms of "iterations" rather than wall clock time.
        Hide
        Robert Muir added a comment -

        OK: it eventually worked for me. It appeared hung because of buffering. But it works eventually and crashes!

        Show
        Robert Muir added a comment - OK: it eventually worked for me. It appeared hung because of buffering. But it works eventually and crashes!
        Hide
        Uwe Schindler added a comment -

        OK: it eventually worked for me. It appeared hung because of buffering. But it works eventually and crashes!

        Yes, that is the problem. The client only prints some status like /*| symbols to System.out but never a new line. Ant consumes the output, but forwards the result only to its internal logger (the one printing "[java] ..."" when a new line starts.

        Show
        Uwe Schindler added a comment - OK: it eventually worked for me. It appeared hung because of buffering. But it works eventually and crashes! Yes, that is the problem. The client only prints some status like /*| symbols to System.out but never a new line. Ant consumes the output, but forwards the result only to its internal logger (the one printing " [java] ..."" when a new line starts.
        Hide
        Uwe Schindler added a comment -

        Better patch that makes the output of the 3 processes prefixed by their name. The idea is to pass taskname="..." to the java task. So every <java/> process has its own "task name".

        Show
        Uwe Schindler added a comment - Better patch that makes the output of the 3 processes prefixed by their name. The idea is to pass taskname="..." to the java task. So every <java/> process has its own "task name".
        Hide
        Michael McCandless added a comment -

        Let's add newlines

        This hurts emacs too.

        Show
        Michael McCandless added a comment - Let's add newlines This hurts emacs too.
        Hide
        Robert Muir added a comment -

        improved patch that fails faster, prints less

        Show
        Robert Muir added a comment - improved patch that fails faster, prints less
        Hide
        Michael McCandless added a comment -

        +1 for that last patch. Emacs is happy, the test fails quickly w/ NativeFSLF and not with SimpleFSLF.

        Show
        Michael McCandless added a comment - +1 for that last patch. Emacs is happy, the test fails quickly w/ NativeFSLF and not with SimpleFSLF.
        Hide
        Robert Muir added a comment -

        add failOnError=true so you get BUILD FAILED

        Show
        Robert Muir added a comment - add failOnError=true so you get BUILD FAILED
        Hide
        Uwe Schindler added a comment - - edited

        Thanks.
        To run this after our standard test suite, wee will need to add a new target named "test" that is empty and depends on "common.test" and "test-lock-factory". we would just need a way to run this for all
        I am not yet happy about Ant's <sleep seconds="1"/>, because slower computers may take longer. Is there a way to synchronize this without waiting? Maybe once the lock server is online and has bound to port, it prints the port number (a random one) to the file. The lockveryify clients just wait for the file to appear and read the port number and then start to hammer against the lock dir.

        Show
        Uwe Schindler added a comment - - edited Thanks. To run this after our standard test suite, wee will need to add a new target named "test" that is empty and depends on "common.test" and "test-lock-factory". we would just need a way to run this for all I am not yet happy about Ant's <sleep seconds="1"/> , because slower computers may take longer. Is there a way to synchronize this without waiting? Maybe once the lock server is online and has bound to port, it prints the port number (a random one) to the file. The lockveryify clients just wait for the file to appear and read the port number and then start to hammer against the lock dir.
        Hide
        Michael McCandless added a comment -

        Here's a simple Python script that launches server + 3 clients, waits N seconds, and if no clients have exited, assumes success.

        Show
        Michael McCandless added a comment - Here's a simple Python script that launches server + 3 clients, waits N seconds, and if no clients have exited, assumes success.
        Hide
        Robert Muir added a comment -

        Cool: maybe we can run the python script just with jython or something? it doesnt need to be fast.

        My problem with ant/java here: is getting server and client to terminate without hiding bugs. We dont really want to interrupt() the server sleeping in accept() and so on, or rely on the clients to send a shutdown message or whatever. These things could cause loops or hide actual failures...

        Show
        Robert Muir added a comment - Cool: maybe we can run the python script just with jython or something? it doesnt need to be fast. My problem with ant/java here: is getting server and client to terminate without hiding bugs. We dont really want to interrupt() the server sleeping in accept() and so on, or rely on the clients to send a shutdown message or whatever. These things could cause loops or hide actual failures...
        Hide
        Uwe Schindler added a comment -

        The problem is still java at all. You cannot kill a child process easily from java, and windows is much harder on top. It is just not supported. Jenkins uses crazy workarounds.

        Dawid Weiss' test runners communicate over the file, but thats more hard to do. Let me think about it.

        Show
        Uwe Schindler added a comment - The problem is still java at all. You cannot kill a child process easily from java, and windows is much harder on top. It is just not supported. Jenkins uses crazy workarounds. Dawid Weiss' test runners communicate over the file, but thats more hard to do. Let me think about it.
        Hide
        Uwe Schindler added a comment - - edited

        Here is a more sophisticated crusher using ant:

        • I rewrote the socket code to use a timeout in the server: if no client connects anymore after 2 seconds waiting in accept() the server shuts silently down
        • The clients aquires a lock for a fixed amount of times (2000) - see below!
        • Dont bind to internet, bind to 127.0.0.1 only. This prevents my firewall from complaining.
        • The lock server ignores connections without any data sent. This allows to make the ANT task use <waitfor><socket.../></waitfor> to test if socket responds, so it starts the clients after the server is listening.

        The problem with the whole test is and why the number of connects are limited to 2000::

        • Most operating systems have a limited amount of empheral ports.
        • If both clients connect like 20000 times in short time, there are 40000 empheral ports reserved (because they are only freed after some waiting time). This leads to errors like "out of buffer space" or "no more file descriptors" in linux.

        The attached patch also includes the ANT task into our "ant test". In core, "ant test" is redefined to run "common.test" (inherited) and then the new "test-lock-factory".

        On Windows test passes (as expected):

           [junit4]
           [junit4] JVM J0:     1.06 ..   183.75 =   182.69s
           [junit4] JVM J1:     1.06 ..   193.50 =   192.44s
           [junit4] JVM J2:     1.06 ..   183.84 =   182.78s
           [junit4] JVM J3:     1.06 ..   193.47 =   192.41s
           [junit4] Execution time total: 3 minutes 13 seconds
           [junit4] Tests summary: 391 suites, 3055 tests, 179 ignored (169 assumptions)
             [echo] 5 slowest tests:
        [junit4:tophints] 206.37s | org.apache.lucene.index.TestIndexReaderClose
        [junit4:tophints]  61.07s | org.apache.lucene.codecs.compressing.TestCompressingTermVectorsFormat
        [junit4:tophints]  37.95s | org.apache.lucene.index.TestConcurrentMergeScheduler
        [junit4:tophints]  36.55s | org.apache.lucene.index.TestIndexWriterMerging
        [junit4:tophints]  31.86s | org.apache.lucene.search.TestSloppyPhraseQuery
        
        -check-totals:
        
        common.test:
        
        test-lock-factory:
        [LockVerifyServer] Ready on port 51234...
        [LockStressTest1] 0.0% done.
        [LockStressTest2] 0.0% done.
        [LockStressTest2] 50.0% done.
        [LockStressTest1] 50.0% done.
        [LockStressTest2] Finished 2000 tries.
        [LockStressTest1] Finished 2000 tries.
        [LockVerifyServer] Stopped server after 2000 ms silence.
        
        test:
        
        BUILD SUCCESSFUL
        Total time: 3 minutes 37 seconds
        

        In linux it fails:

        test-lock-factory:
        [LockVerifyServer] Ready on port 51234...
        [LockStressTest2] 0.0% done.
        [LockStressTest2] Exception in thread "main" java.lang.RuntimeException: lock was double acquired
        [LockStressTest2] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:63)
        [LockStressTest2] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.obtain(VerifyingLockFactory.java:74)
        [LockStressTest2] 	at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:93)
        [LockStressTest1] 0.0% done.
        [LockStressTest1] Exception in thread "main" java.lang.RuntimeException: java.net.SocketException: Connection reset
        [LockStressTest1] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:66)
        [LockStressTest1] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.close(VerifyingLockFactory.java:91)
        [LockStressTest1] 	at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:100)
        [LockStressTest1] Caused by: java.net.SocketException: Connection reset
        [LockStressTest1] 	at java.net.SocketInputStream.read(SocketInputStream.java:196)
        [LockStressTest1] 	at java.net.SocketInputStream.read(SocketInputStream.java:122)
        [LockStressTest1] 	at java.net.SocketInputStream.read(SocketInputStream.java:210)
        [LockStressTest1] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:61)
        [LockStressTest1] 	... 2 more
        [LockVerifyServer] Exception in thread "main" java.lang.IllegalStateException: [0s]  ERROR: id 2 got lock, but 1 already holds the lock
        [LockVerifyServer] 	at org.apache.lucene.store.LockVerifyServer.main(LockVerifyServer.java:76)
        
        BUILD FAILED
        /home/thetaphi/Desktop/trunk-lusolr1/lucene/core/build.xml:162: 
        Java returned: 1
        Java returned: 1
        Java returned: 1
        
        Show
        Uwe Schindler added a comment - - edited Here is a more sophisticated crusher using ant: I rewrote the socket code to use a timeout in the server: if no client connects anymore after 2 seconds waiting in accept() the server shuts silently down The clients aquires a lock for a fixed amount of times (2000) - see below! Dont bind to internet, bind to 127.0.0.1 only. This prevents my firewall from complaining. The lock server ignores connections without any data sent. This allows to make the ANT task use <waitfor><socket.../></waitfor> to test if socket responds, so it starts the clients after the server is listening. The problem with the whole test is and why the number of connects are limited to 2000:: Most operating systems have a limited amount of empheral ports. If both clients connect like 20000 times in short time, there are 40000 empheral ports reserved (because they are only freed after some waiting time). This leads to errors like "out of buffer space" or "no more file descriptors" in linux. The attached patch also includes the ANT task into our "ant test". In core, "ant test" is redefined to run "common.test" (inherited) and then the new "test-lock-factory". On Windows test passes (as expected): [junit4] [junit4] JVM J0: 1.06 .. 183.75 = 182.69s [junit4] JVM J1: 1.06 .. 193.50 = 192.44s [junit4] JVM J2: 1.06 .. 183.84 = 182.78s [junit4] JVM J3: 1.06 .. 193.47 = 192.41s [junit4] Execution time total: 3 minutes 13 seconds [junit4] Tests summary: 391 suites, 3055 tests, 179 ignored (169 assumptions) [echo] 5 slowest tests: [junit4:tophints] 206.37s | org.apache.lucene.index.TestIndexReaderClose [junit4:tophints] 61.07s | org.apache.lucene.codecs.compressing.TestCompressingTermVectorsFormat [junit4:tophints] 37.95s | org.apache.lucene.index.TestConcurrentMergeScheduler [junit4:tophints] 36.55s | org.apache.lucene.index.TestIndexWriterMerging [junit4:tophints] 31.86s | org.apache.lucene.search.TestSloppyPhraseQuery -check-totals: common.test: test-lock-factory: [LockVerifyServer] Ready on port 51234... [LockStressTest1] 0.0% done. [LockStressTest2] 0.0% done. [LockStressTest2] 50.0% done. [LockStressTest1] 50.0% done. [LockStressTest2] Finished 2000 tries. [LockStressTest1] Finished 2000 tries. [LockVerifyServer] Stopped server after 2000 ms silence. test: BUILD SUCCESSFUL Total time: 3 minutes 37 seconds In linux it fails: test-lock-factory: [LockVerifyServer] Ready on port 51234... [LockStressTest2] 0.0% done. [LockStressTest2] Exception in thread "main" java.lang.RuntimeException: lock was double acquired [LockStressTest2] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:63) [LockStressTest2] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.obtain(VerifyingLockFactory.java:74) [LockStressTest2] at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:93) [LockStressTest1] 0.0% done. [LockStressTest1] Exception in thread "main" java.lang.RuntimeException: java.net.SocketException: Connection reset [LockStressTest1] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:66) [LockStressTest1] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.close(VerifyingLockFactory.java:91) [LockStressTest1] at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:100) [LockStressTest1] Caused by: java.net.SocketException: Connection reset [LockStressTest1] at java.net.SocketInputStream.read(SocketInputStream.java:196) [LockStressTest1] at java.net.SocketInputStream.read(SocketInputStream.java:122) [LockStressTest1] at java.net.SocketInputStream.read(SocketInputStream.java:210) [LockStressTest1] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:61) [LockStressTest1] ... 2 more [LockVerifyServer] Exception in thread "main" java.lang.IllegalStateException: [0s] ERROR: id 2 got lock, but 1 already holds the lock [LockVerifyServer] at org.apache.lucene.store.LockVerifyServer.main(LockVerifyServer.java:76) BUILD FAILED /home/thetaphi/Desktop/trunk-lusolr1/lucene/core/build.xml:162: Java returned: 1 Java returned: 1 Java returned: 1
        Hide
        Uwe Schindler added a comment -

        fix typo in patch.

        Show
        Uwe Schindler added a comment - fix typo in patch.
        Hide
        Uwe Schindler added a comment -

        More improvements:

        • Removed the whole "host" parameter (partly unused). As we bind and listen on 127.0.0.1 there is no need to pass the host to the lock verifier.
        • Removed the sleep from ANT. The client checks the port before starting to hammer.
        • Improved SoTimeouts: Server waits for the first connection a maximum of 30 secs, for all following connections he only waits a much shorter time, 100ms. If no more connection arrives, die silently.
        Show
        Uwe Schindler added a comment - More improvements: Removed the whole "host" parameter (partly unused). As we bind and listen on 127.0.0.1 there is no need to pass the host to the lock verifier. Removed the sleep from ANT. The client checks the port before starting to hammer. Improved SoTimeouts: Server waits for the first connection a maximum of 30 secs, for all following connections he only waits a much shorter time, 100ms. If no more connection arrives, die silently.
        Hide
        Uwe Schindler added a comment -

        The latest patch should work for now, but when looking at the code, there may be more improvements. I will do them later today, but for testing this is all fine how it is now:

        • The problem with the ephemeral port allocation is a bit stupid. The problem here is that every locking operation creates a new socket connection to the server. I would change the server to only accept one connection per client and keep it open (in a separate thread). The clients only connect one time and just pass the open socket to the VerifyingLockFactory.
        • We have no McCandless like "Starting Gun". This is getting better, but still all clients are not starting to hammer the lock dir at the same time. With the above "one socket" per client, we can add a starting gun. The server gets the number of clients to connect on startup. Then it accepts up to this number of connections (but do not communicate over them). Once all clients connected, the server sends a starting gun signal through all sockets.

        What do you think?

        Show
        Uwe Schindler added a comment - The latest patch should work for now, but when looking at the code, there may be more improvements. I will do them later today, but for testing this is all fine how it is now: The problem with the ephemeral port allocation is a bit stupid. The problem here is that every locking operation creates a new socket connection to the server. I would change the server to only accept one connection per client and keep it open (in a separate thread). The clients only connect one time and just pass the open socket to the VerifyingLockFactory. We have no McCandless like "Starting Gun". This is getting better, but still all clients are not starting to hammer the lock dir at the same time. With the above "one socket" per client, we can add a starting gun. The server gets the number of clients to connect on startup. Then it accepts up to this number of connections (but do not communicate over them). Once all clients connected, the server sends a starting gun signal through all sockets. What do you think?
        Hide
        Uwe Schindler added a comment -

        About the problem with the lock file and deleting them. The main issue is that if a file is called "write.lock", the users think there is something wrong. I propose:

        • SimpleFSLockFactory will use write.lock as usual
        • NativeFSLockFactory will use a different lock file name with a better name (because the file is not there to lock by its existence (like lock files do), it is there as a "communication point". So I would propose to create this file one time (after opening IndexWriter) and never ever delete it. The file should be named like "index.dir", so it does not really look like a lock file, more like a "marker file". Another idea: could we maybe lock on segments.gen file?

        I thought about it: deleting the file in deleteOnExit will bring the same problems we have currently! So the NativeFSLock file should stay alive for the lifetime of the index and should be named like a marker file.

        The only backside, because the lock files are named different, the 2 different lock factories can no longer work together. But this never worked correctly, so it is better to not support this at all (by using different file names).

        Show
        Uwe Schindler added a comment - About the problem with the lock file and deleting them. The main issue is that if a file is called "write.lock", the users think there is something wrong. I propose: SimpleFSLockFactory will use write.lock as usual NativeFSLockFactory will use a different lock file name with a better name (because the file is not there to lock by its existence (like lock files do), it is there as a "communication point". So I would propose to create this file one time (after opening IndexWriter) and never ever delete it. The file should be named like "index.dir", so it does not really look like a lock file, more like a "marker file". Another idea: could we maybe lock on segments.gen file? I thought about it: deleting the file in deleteOnExit will bring the same problems we have currently! So the NativeFSLock file should stay alive for the lifetime of the index and should be named like a marker file. The only backside, because the lock files are named different, the 2 different lock factories can no longer work together. But this never worked correctly, so it is better to not support this at all (by using different file names).
        Hide
        Robert Muir added a comment -

        As we bind and listen on 127.0.0.1 there is no need to pass the host to the lock verifier.

        Now how will Mike be able to test NFS

        Show
        Robert Muir added a comment - As we bind and listen on 127.0.0.1 there is no need to pass the host to the lock verifier. Now how will Mike be able to test NFS
        Hide
        Uwe Schindler added a comment -

        Now how will Mike be able to test NFS

        LOL. I'll readd the possibility to use another bind host and connect host. But default to 127.0.0.1. I will now work on making the socket communication better without creating new connections over an over.

        Robert, did you try the latest patch? Does it work well for you?

        If we fix the underlying bug that makes the crusher crush, can we do this in a separate patch? I think the LockTester and the fix here are 2 separate things.

        Show
        Uwe Schindler added a comment - Now how will Mike be able to test NFS LOL. I'll readd the possibility to use another bind host and connect host. But default to 127.0.0.1. I will now work on making the socket communication better without creating new connections over an over. Robert, did you try the latest patch? Does it work well for you? If we fix the underlying bug that makes the crusher crush, can we do this in a separate patch? I think the LockTester and the fix here are 2 separate things.
        Hide
        Robert Muir added a comment -

        I havent tried the latest patches yet. I'm currently looking at another bug (https://issues.apache.org/jira/browse/LUCENE-5616)

        Show
        Robert Muir added a comment - I havent tried the latest patches yet. I'm currently looking at another bug ( https://issues.apache.org/jira/browse/LUCENE-5616 )
        Hide
        Michael McCandless added a comment -

        Hmm when I run "ant test-lock-factory" on linux it sometimes passes
        and sometimes fails. I even up'd the count to 20000 and ... it still
        sometimes passes. Not sure why. I do see the two clients printing
        out X% done, interleaved ... oh I see, we set delay to 1 msec; if I
        change that to 0 it always fails!

        Can we remove this delay option (just don't sleep)? If you want to
        have some confidence locking is working, you should fully stress it
        out.

        Should we use lockedID=-1 for the "no lock held" case? What if a
        client id is 0? Won't this confuse LockVerifyServer?

        As we bind and listen on 127.0.0.1 there is no need to pass the host to the lock verifier.

        Now how will Mike be able to test NFS

        Can we put back host/IP interface?

        I think it's useful to validate your locking is working OK if you
        store the Lucene index on a remote filesystem and you "rely" on this
        locking to pick a machine to write to the index. Admittedly this is
        not a recommended way to use Lucene... but at least this tool (today)
        can be used to make sure locking is working if you do so... we can
        still set it to 127.0.0.1 in build.xml to keep Uwe's firewall happy.

        It would be better if we didn't fix the port the server binds to?

        I think it's sort of weird to add the complexity of the timeouts to
        the server, the waiting to make sure server is started, etc.: you can
        just start the server first, see it's started, then spawn children;
        ie, it seems like we are pushing complexity down into the tester
        tools just to workaround limitations of ant's sub-process
        handling... vs just letting Python handle this.

        But I like the other cleanups like try-with-resources.

        Show
        Michael McCandless added a comment - Hmm when I run "ant test-lock-factory" on linux it sometimes passes and sometimes fails. I even up'd the count to 20000 and ... it still sometimes passes. Not sure why. I do see the two clients printing out X% done, interleaved ... oh I see, we set delay to 1 msec; if I change that to 0 it always fails! Can we remove this delay option (just don't sleep)? If you want to have some confidence locking is working, you should fully stress it out. Should we use lockedID=-1 for the "no lock held" case? What if a client id is 0? Won't this confuse LockVerifyServer? As we bind and listen on 127.0.0.1 there is no need to pass the host to the lock verifier. Now how will Mike be able to test NFS Can we put back host/IP interface? I think it's useful to validate your locking is working OK if you store the Lucene index on a remote filesystem and you "rely" on this locking to pick a machine to write to the index. Admittedly this is not a recommended way to use Lucene... but at least this tool (today) can be used to make sure locking is working if you do so... we can still set it to 127.0.0.1 in build.xml to keep Uwe's firewall happy. It would be better if we didn't fix the port the server binds to? I think it's sort of weird to add the complexity of the timeouts to the server, the waiting to make sure server is started, etc.: you can just start the server first, see it's started, then spawn children; ie, it seems like we are pushing complexity down into the tester tools just to workaround limitations of ant's sub-process handling... vs just letting Python handle this. But I like the other cleanups like try-with-resources.
        Hide
        Uwe Schindler added a comment -

        Mike, soon a completely new server and client code will come. The current one is bullshit because the child consumes all your port numbers... The new server will not have any timeout stuff anymore, it creates exactly one connection with every client.

        Can we remove this delay option (just don't sleep)? If you want to have some confidence locking is working, you should fully stress it out.

        Without the delay it is no longer a real use-case. The test does not fail always, because under real circumstances it is unlikely that you hit the bug. With reducing the time to zero, we may hide other bugs.

        But if we have another lock factory it could fail for another reason, so we should really hold the lock for a certain time.

        Show
        Uwe Schindler added a comment - Mike, soon a completely new server and client code will come. The current one is bullshit because the child consumes all your port numbers... The new server will not have any timeout stuff anymore, it creates exactly one connection with every client. Can we remove this delay option (just don't sleep)? If you want to have some confidence locking is working, you should fully stress it out. Without the delay it is no longer a real use-case. The test does not fail always, because under real circumstances it is unlikely that you hit the bug. With reducing the time to zero, we may hide other bugs. But if we have another lock factory it could fail for another reason, so we should really hold the lock for a certain time.
        Hide
        Michael McCandless added a comment -

        Mike, soon a completely new server and client code will come.

        Excellent!

        Without the delay it is no longer a real use-case.

        That's true, it just spooked me out that the test sometimes passed (failed to detect the bug in NativeFSLF). I suppose if we run it in Jenkins it would eventually fail ...

        Show
        Michael McCandless added a comment - Mike, soon a completely new server and client code will come. Excellent! Without the delay it is no longer a real use-case. That's true, it just spooked me out that the test sometimes passed (failed to detect the bug in NativeFSLF). I suppose if we run it in Jenkins it would eventually fail ...
        Hide
        Uwe Schindler added a comment -

        New server:

        • Only one socket per client. The server expects the number of clients as command line parameter.
        • Once all clients were connected, its uses a McCandless' starting gun (over network!) to fire all clients
        • All clients hammer against the lock dir (for a fixed number of times) and then close connection
        • Server waits for all client threads to die (they die when client closes connection)

        Currently this server still binds to localhost only, will cleanup my code and then it should be possible to bind to a specific IP again.

        Show
        Uwe Schindler added a comment - New server: Only one socket per client. The server expects the number of clients as command line parameter. Once all clients were connected, its uses a McCandless' starting gun (over network!) to fire all clients All clients hammer against the lock dir (for a fixed number of times) and then close connection Server waits for all client threads to die (they die when client closes connection) Currently this server still binds to localhost only, will cleanup my code and then it should be possible to bind to a specific IP again.
        Hide
        Uwe Schindler added a comment -

        Crusher with improved server:

        • Server binds to ephemeral port
        • Once bound, it sets a sysproperty
        • The server is running in-process of the ANT task. Because of that, once the sysprop is set, Ant sees it.
        • The ANT macro that starts the client uses a while-loop to wait for the server
        • Once the port is there, ant starts the client. Because the server is already running, client does not need to wait for server, it can connect ASAP.
        Show
        Uwe Schindler added a comment - Crusher with improved server: Server binds to ephemeral port Once bound, it sets a sysproperty The server is running in-process of the ANT task. Because of that, once the sysprop is set, Ant sees it. The ANT macro that starts the client uses a while-loop to wait for the server Once the port is there, ant starts the client. Because the server is already running, client does not need to wait for server, it can connect ASAP.
        Hide
        Robert Muir added a comment -

        I ran the test, seems to fail quite fast:

        test-lock-factory:
        [LockVerifyServer] Listening on /127.0.0.1:50571...
        [LockVerifyServer] All clients started, fire gun...
        [LockStressTest1] Connecting to server /127.0.0.1:50571 and registering as client 1...
        [LockStressTest2] Connecting to server /127.0.0.1:50571 and registering as client 2...
        [LockStressTest2] 0.0% done.
        [LockStressTest1] 0.0% done.
        [LockStressTest1] Exception in thread "Thread-12" java.lang.IllegalStateException: id 1 got lock, but 2 already holds the lock
        [LockStressTest1] 	at org.apache.lucene.store.LockVerifyServer$1.run(LockVerifyServer.java:100)
        [LockVerifyServer] Server terminated.
        [LockStressTest1] Exception in thread "main" java.lang.IllegalStateException: Lock server died because of locking error.
        [LockStressTest2] Exception in thread "main" java.lang.IllegalStateException: Lock server died because of locking error.
        [LockStressTest1] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:56)
        [LockStressTest1] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.obtain(VerifyingLockFactory.java:67)
        [LockStressTest2] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:56)
        [LockStressTest1] 	at org.apache.lucene.store.Lock.obtain(Lock.java:77)
        [LockStressTest2] 	at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.close(VerifyingLockFactory.java:79)
        [LockStressTest1] 	at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:114)
        [LockStressTest2] 	at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:120)
        
        BUILD FAILED
        /home/rmuir/workspace/lucene-trunk/lucene/core/build.xml:192: 
        The following error occurred while executing this line:
        /home/rmuir/workspace/lucene-trunk/lucene/core/build.xml:160: Java returned: 1
        The following error occurred while executing this line:
        /home/rmuir/workspace/lucene-trunk/lucene/core/build.xml:160: Java returned: 1
        
        Total time: 2 seconds
        

        With SimpleFSLock, the test passes on linux and build succeeds:

        test-lock-factory:
        [LockVerifyServer] Listening on /127.0.0.1:37227...
        [LockVerifyServer] All clients started, fire gun...
        [LockStressTest1] Connecting to server /127.0.0.1:37227 and registering as client 1...
        [LockStressTest1] 0.0% done.
        [LockStressTest2] Connecting to server /127.0.0.1:37227 and registering as client 2...
        [LockStressTest2] 0.0% done.
        [LockStressTest1] 5.0% done.
        [LockStressTest2] 5.0% done.
        [LockStressTest1] 10.0% done.
        [LockStressTest2] 10.0% done.
        [LockStressTest2] 15.0% done.
        [LockStressTest1] 15.0% done.
        [LockStressTest2] 20.0% done.
        [LockStressTest1] 20.0% done.
        [LockStressTest2] 25.0% done.
        [LockStressTest1] 25.0% done.
        [LockStressTest1] 30.0% done.
        [LockStressTest2] 30.0% done.
        [LockStressTest1] 35.0% done.
        [LockStressTest2] 35.0% done.
        [LockStressTest1] 40.0% done.
        [LockStressTest2] 40.0% done.
        [LockStressTest2] 45.0% done.
        [LockStressTest1] 45.0% done.
        [LockStressTest1] 50.0% done.
        [LockStressTest2] 50.0% done.
        [LockStressTest1] 55.0% done.
        [LockStressTest2] 55.0% done.
        [LockStressTest1] 60.0% done.
        [LockStressTest2] 60.0% done.
        [LockStressTest1] 65.0% done.
        [LockStressTest2] 65.0% done.
        [LockStressTest1] 70.0% done.
        [LockStressTest2] 70.0% done.
        [LockStressTest1] 75.0% done.
        [LockStressTest2] 75.0% done.
        [LockStressTest2] 80.0% done.
        [LockStressTest1] 80.0% done.
        [LockStressTest2] 85.0% done.
        [LockStressTest1] 85.0% done.
        [LockStressTest2] 90.0% done.
        [LockStressTest1] 90.0% done.
        [LockStressTest2] 95.0% done.
        [LockStressTest1] 95.0% done.
        [LockVerifyServer] Server terminated.
        [LockStressTest2] Finished 20000 tries.
        [LockStressTest1] Finished 20000 tries.
        
        BUILD SUCCESSFUL
        Total time: 25 seconds
        

        Nice work, perhaps the target should be moved to a macro, so we can test both implementations in jenkins (Simple and Native)? And for now, we have to disable Native since we know it will fail, until the bug is fixed.

        Show
        Robert Muir added a comment - I ran the test, seems to fail quite fast: test-lock-factory: [LockVerifyServer] Listening on /127.0.0.1:50571... [LockVerifyServer] All clients started, fire gun... [LockStressTest1] Connecting to server /127.0.0.1:50571 and registering as client 1... [LockStressTest2] Connecting to server /127.0.0.1:50571 and registering as client 2... [LockStressTest2] 0.0% done. [LockStressTest1] 0.0% done. [LockStressTest1] Exception in thread "Thread-12" java.lang.IllegalStateException: id 1 got lock, but 2 already holds the lock [LockStressTest1] at org.apache.lucene.store.LockVerifyServer$1.run(LockVerifyServer.java:100) [LockVerifyServer] Server terminated. [LockStressTest1] Exception in thread "main" java.lang.IllegalStateException: Lock server died because of locking error. [LockStressTest2] Exception in thread "main" java.lang.IllegalStateException: Lock server died because of locking error. [LockStressTest1] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:56) [LockStressTest1] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.obtain(VerifyingLockFactory.java:67) [LockStressTest2] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.verify(VerifyingLockFactory.java:56) [LockStressTest1] at org.apache.lucene.store.Lock.obtain(Lock.java:77) [LockStressTest2] at org.apache.lucene.store.VerifyingLockFactory$CheckedLock.close(VerifyingLockFactory.java:79) [LockStressTest1] at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:114) [LockStressTest2] at org.apache.lucene.store.LockStressTest.main(LockStressTest.java:120) BUILD FAILED /home/rmuir/workspace/lucene-trunk/lucene/core/build.xml:192: The following error occurred while executing this line: /home/rmuir/workspace/lucene-trunk/lucene/core/build.xml:160: Java returned: 1 The following error occurred while executing this line: /home/rmuir/workspace/lucene-trunk/lucene/core/build.xml:160: Java returned: 1 Total time: 2 seconds With SimpleFSLock, the test passes on linux and build succeeds: test-lock-factory: [LockVerifyServer] Listening on /127.0.0.1:37227... [LockVerifyServer] All clients started, fire gun... [LockStressTest1] Connecting to server /127.0.0.1:37227 and registering as client 1... [LockStressTest1] 0.0% done. [LockStressTest2] Connecting to server /127.0.0.1:37227 and registering as client 2... [LockStressTest2] 0.0% done. [LockStressTest1] 5.0% done. [LockStressTest2] 5.0% done. [LockStressTest1] 10.0% done. [LockStressTest2] 10.0% done. [LockStressTest2] 15.0% done. [LockStressTest1] 15.0% done. [LockStressTest2] 20.0% done. [LockStressTest1] 20.0% done. [LockStressTest2] 25.0% done. [LockStressTest1] 25.0% done. [LockStressTest1] 30.0% done. [LockStressTest2] 30.0% done. [LockStressTest1] 35.0% done. [LockStressTest2] 35.0% done. [LockStressTest1] 40.0% done. [LockStressTest2] 40.0% done. [LockStressTest2] 45.0% done. [LockStressTest1] 45.0% done. [LockStressTest1] 50.0% done. [LockStressTest2] 50.0% done. [LockStressTest1] 55.0% done. [LockStressTest2] 55.0% done. [LockStressTest1] 60.0% done. [LockStressTest2] 60.0% done. [LockStressTest1] 65.0% done. [LockStressTest2] 65.0% done. [LockStressTest1] 70.0% done. [LockStressTest2] 70.0% done. [LockStressTest1] 75.0% done. [LockStressTest2] 75.0% done. [LockStressTest2] 80.0% done. [LockStressTest1] 80.0% done. [LockStressTest2] 85.0% done. [LockStressTest1] 85.0% done. [LockStressTest2] 90.0% done. [LockStressTest1] 90.0% done. [LockStressTest2] 95.0% done. [LockStressTest1] 95.0% done. [LockVerifyServer] Server terminated. [LockStressTest2] Finished 20000 tries. [LockStressTest1] Finished 20000 tries. BUILD SUCCESSFUL Total time: 25 seconds Nice work, perhaps the target should be moved to a macro, so we can test both implementations in jenkins (Simple and Native)? And for now, we have to disable Native since we know it will fail, until the bug is fixed.
        Hide
        Robert Muir added a comment -

        Also, it does take like 30 seconds to run when it passes. Maybe the number of iterations can be conditionalized based on tests.nightly or multiplier?

        This way we can have it run for just a little bit in normal tests on developer machines, but longer in jenkins.

        Show
        Robert Muir added a comment - Also, it does take like 30 seconds to run when it passes. Maybe the number of iterations can be conditionalized based on tests.nightly or multiplier? This way we can have it run for just a little bit in normal tests on developer machines, but longer in jenkins.
        Hide
        Uwe Schindler added a comment -

        Thats easy with some <condition/> around the property that sets 20000. Will look into it.

        Show
        Uwe Schindler added a comment - Thats easy with some <condition/> around the property that sets 20000. Will look into it.
        Hide
        Michael McCandless added a comment -

        Thanks Uwe, this looks nice!

        For some reason (not sure why?), even with the same default delay 1
        msec, the test now always fails for me, which is great.

        +1 to commit.

        Then we get to figure out how to fix the actual bug

        Show
        Michael McCandless added a comment - Thanks Uwe, this looks nice! For some reason (not sure why?), even with the same default delay 1 msec, the test now always fails for me, which is great. +1 to commit. Then we get to figure out how to fix the actual bug
        Hide
        Robert Muir added a comment -

        For some reason (not sure why?), even with the same default delay 1
        msec, the test now always fails for me, which is great.

        the starting gun!

        Show
        Robert Muir added a comment - For some reason (not sure why?), even with the same default delay 1 msec, the test now always fails for me, which is great. the starting gun!
        Hide
        Robert Muir added a comment -

        Maybe for the same reason, the sleep time should be randomized (it could use tests.seed?). This gives a better chance of overlapping in case of a misfire in the gun.

        Show
        Robert Muir added a comment - Maybe for the same reason, the sleep time should be randomized (it could use tests.seed?). This gives a better chance of overlapping in case of a misfire in the gun.
        Hide
        Uwe Schindler added a comment -

        New patch. Will cimmit this soon to trunk only.

        This patch disables the lock crusher when doing "ant test". To reeanble once we fixed NativeFS, we have to add the commented out target.

        I did not randomize the delay, because its already 1 and randomizing whold make the test take longer. Its also harder to randomize this per client. Globally for all clients makes no sense.

        The initial setup is printed, the lock count is depending on tests.nightly and tests.multiplier.

        Show
        Uwe Schindler added a comment - New patch. Will cimmit this soon to trunk only. This patch disables the lock crusher when doing "ant test". To reeanble once we fixed NativeFS, we have to add the commented out target. I did not randomize the delay, because its already 1 and randomizing whold make the test take longer. Its also harder to randomize this per client. Globally for all clients makes no sense. The initial setup is printed, the lock count is depending on tests.nightly and tests.multiplier.
        Hide
        ASF subversion and git services added a comment -

        Commit 1588570 from uschindler@apache.org in branch 'dev/trunk'
        [ https://svn.apache.org/r1588570 ]

        LUCENE-5612: Add ant target to test NativeFSLockFactory, refactor the lock verifier.

        Show
        ASF subversion and git services added a comment - Commit 1588570 from uschindler@apache.org in branch 'dev/trunk' [ https://svn.apache.org/r1588570 ] LUCENE-5612 : Add ant target to test NativeFSLockFactory, refactor the lock verifier.
        Hide
        Uwe Schindler added a comment -

        I committed the crusher to trunk. We can now start to fix NativeFSLockFactory, see my comments above! LUCENE-5612?focusedCommentId=13973960&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13973960

        Show
        Uwe Schindler added a comment - I committed the crusher to trunk. We can now start to fix NativeFSLockFactory, see my comments above! LUCENE-5612?focusedCommentId=13973960&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13973960
        Hide
        ASF subversion and git services added a comment -

        Commit 1588590 from uschindler@apache.org in branch 'dev/trunk'
        [ https://svn.apache.org/r1588590 ]

        LUCENE-5612: Reuse the socket's input/output

        Show
        ASF subversion and git services added a comment - Commit 1588590 from uschindler@apache.org in branch 'dev/trunk' [ https://svn.apache.org/r1588590 ] LUCENE-5612 : Reuse the socket's input/output
        Hide
        Robert Muir added a comment -

        an initial patch cleaning up unneeded stuff in this lockfactory (static map, deleting files, etc). tests pass.

        Show
        Robert Muir added a comment - an initial patch cleaning up unneeded stuff in this lockfactory (static map, deleting files, etc). tests pass.
        Hide
        Michael McCandless added a comment -

        Patch looks good! "ant test-lock-factory" is happy!

        Show
        Michael McCandless added a comment - Patch looks good! "ant test-lock-factory" is happy!
        Hide
        Uwe Schindler added a comment -

        Patch looks good and also works with windows!

        I also verfied that the actual case of locking a 2nd time from the same JVM locks, but this is successfully tested in TestLockFactory#testNativeFSLockFactory test.

        I think the lock file naming should be a new issue, so we can proceed with Lucene 4.8! I still think that naming the file write.lock is a bad idea. In my opinion, the lock file name should be the LockFactory's implementation detailt and not exposed to IndexWriter. IndexWriter should simply call LockFactory.getLock().obtain() without a name. By that I would make the lock file names different for the different lock factories, definitely not called write.lock (see above)..

        Nevertheless, we should add documentation and a note in CHANGES.txt, that since Lucene 4.8, the lock file is never removed! If somebody complains, we can tell the user to look at documentation.

        Show
        Uwe Schindler added a comment - Patch looks good and also works with windows! I also verfied that the actual case of locking a 2nd time from the same JVM locks, but this is successfully tested in TestLockFactory#testNativeFSLockFactory test. I think the lock file naming should be a new issue, so we can proceed with Lucene 4.8! I still think that naming the file write.lock is a bad idea. In my opinion, the lock file name should be the LockFactory's implementation detailt and not exposed to IndexWriter. IndexWriter should simply call LockFactory.getLock().obtain() without a name. By that I would make the lock file names different for the different lock factories, definitely not called write.lock (see above).. Nevertheless, we should add documentation and a note in CHANGES.txt, that since Lucene 4.8, the lock file is never removed! If somebody complains, we can tell the user to look at documentation.
        Hide
        Uwe Schindler added a comment -

        Robert: Before you commit: Can you remove the obsolete import statement (IOUtils), which I added to file LockStressTest.java? This one was used in an earlier version of my patch only and I forgot to remove it after I was done.

        For backporting, after you committed, there should be then in total 3 commits in trunk with this issue number, not just 2.

        Show
        Uwe Schindler added a comment - Robert: Before you commit: Can you remove the obsolete import statement (IOUtils), which I added to file LockStressTest.java? This one was used in an earlier version of my patch only and I forgot to remove it after I was done. For backporting, after you committed, there should be then in total 3 commits in trunk with this issue number, not just 2.
        Hide
        Uwe Schindler added a comment -

        One thing, there are 2 test failures on windows:

           [junit4] Tests with failures:
           [junit4]   - org.apache.lucene.index.TestBackwardsCompatibility.testExactFileNames
           [junit4]   - org.apache.lucene.index.TestIndexWriterExceptions.testExceptionsDuringCommit
        
        Show
        Uwe Schindler added a comment - One thing, there are 2 test failures on windows: [junit4] Tests with failures: [junit4] - org.apache.lucene.index.TestBackwardsCompatibility.testExactFileNames [junit4] - org.apache.lucene.index.TestIndexWriterExceptions.testExceptionsDuringCommit
        Hide
        Robert Muir added a comment -

        Yeah, we can hammer out all these test bugs by using -Dtests.directory=NIOFSDirectory and so on.

        Personally I want to remove testExactFileNames, the test is nearly useless and has never found a real bug for me, only false failures. its hard to maintain since it must conditionalize itself based on codecs and so on.

        for the testExceptionsDuringCommit, its the same story, but easier to fix the test without making it confusing.

        Show
        Robert Muir added a comment - Yeah, we can hammer out all these test bugs by using -Dtests.directory=NIOFSDirectory and so on. Personally I want to remove testExactFileNames, the test is nearly useless and has never found a real bug for me, only false failures. its hard to maintain since it must conditionalize itself based on codecs and so on. for the testExceptionsDuringCommit, its the same story, but easier to fix the test without making it confusing.
        Hide
        Uwe Schindler added a comment -

        New patch:

        • removes unused imports, I added before
        • Don't run the new test-lock-factory if the user applied test-filtering (similar to common-build's tests.showSuccess). So it does not run, if you use ant test -Dtestcase=...
        Show
        Uwe Schindler added a comment - New patch: removes unused imports, I added before Don't run the new test-lock-factory if the user applied test-filtering (similar to common-build's tests.showSuccess). So it does not run, if you use ant test -Dtestcase=...
        Hide
        Robert Muir added a comment -

        Updated patch: fixing the IWExceptions test, nuking the testExactFileNames.

        I will ssh to my computer and run this patch w/ all tests with -Dtests.directory (it would take days on this laptop).

        Show
        Robert Muir added a comment - Updated patch: fixing the IWExceptions test, nuking the testExactFileNames. I will ssh to my computer and run this patch w/ all tests with -Dtests.directory (it would take days on this laptop).
        Hide
        Robert Muir added a comment -

        Here is my latest patch, but i am done working on this issue.

        I think the hiding/suppression of output on tests is very bad, we should turn this off and fail tests when they print too much. We should probably stop what we are doing and seriously look at this.

        I'm going to paste my test output for the current fail. Just so you know what I'm dealing with. This is over the top. Tests should not print megabytes of output. I cant even find the failing assertion.

           [junit4] Suite: org.apache.lucene.index.TestIndexWriter
           [junit4]   1> GOT: this writer is closed, but some pending changes or running merges were discarded; use shutdown to save pending changes and finish merges before closing
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:156)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:392)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3033)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1667)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.<init>(BlockTreeTermsReader.java:181)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:441)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2199)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.deleteAll(IndexWriter.java:2127)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1084)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:387)
           [junit4]   1> 	at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:109)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3971)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3567)
           [junit4]   1> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1879)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2826)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:72)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:434)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesProducer.<init>(MemoryDocValuesProducer.java:104)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesFormat.fieldsProducer(MemoryDocValuesFormat.java:65)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsReader.<init>(PerFieldDocValuesFormat.java:232)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat.fieldsProducer(PerFieldDocValuesFormat.java:324)
           [junit4]   1> 	at org.apache.lucene.index.SegmentDocValues.newDocValuesProducer(SegmentDocValues.java:51)
           [junit4]   1> 	at org.apache.lucene.index.SegmentDocValues.getDocValuesProducer(SegmentDocValues.java:68)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.initDocValuesProducers(SegmentReader.java:189)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:116)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:53)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.BitVector.write(BitVector.java:232)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.Lucene40LiveDocsFormat.writeLiveDocs(Lucene40LiveDocsFormat.java:103)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.writeLiveDocs(ReadersAndUpdates.java:268)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.commit(IndexWriter.java:564)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2788)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:53)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.close(BlockTreeTermsReader.java:235)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:383)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.close(BlockTreeTermsReader.java:235)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexReader.<init>(FixedGapTermsIndexReader.java:125)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:103)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1717)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.<init>(Lucene42DocValuesProducer.java:123)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsFormat.normsProducer(Lucene42NormsFormat.java:75)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:116)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:72)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:434)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:324)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:657)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:2425)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1082)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.finishCommit(SegmentInfos.java:891)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishCommit(IndexWriter.java:2953)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2942)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.<init>(BlockTreeTermsReader.java:128)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:441)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:689)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3567)
           [junit4]   1> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1879)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2826)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:122)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.index.SegmentMerger.mergeFields(SegmentMerger.java:321)
           [junit4]   1> 	at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:97)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3971)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3567)
           [junit4]   1> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1879)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1690)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.waitForMerges(IndexWriter.java:2233)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2217)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:881)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 5 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.<init>(BlockTermsReader.java:118)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:117)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexReader.<init>(FixedGapTermsIndexReader.java:125)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:103)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:72)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:434)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.finishCommit(SegmentInfos.java:891)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishCommit(IndexWriter.java:2953)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2942)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentMerger.mergeNorms(SegmentMerger.java:248)
           [junit4]   1> 	at org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:130)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3971)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3567)
           [junit4]   1> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1879)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1690)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.BitVector.write(BitVector.java:232)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.Lucene40LiveDocsFormat.writeLiveDocs(Lucene40LiveDocsFormat.java:103)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.writeLiveDocs(ReadersAndUpdates.java:268)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.commit(IndexWriter.java:564)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2788)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3033)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1667)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:156)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4014)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3567)
           [junit4]   1> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1879)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2826)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:98)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.<init>(Lucene42DocValuesProducer.java:132)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsFormat.normsProducer(Lucene42NormsFormat.java:75)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:116)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3033)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1667)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1717)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1717)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.waitForMerges(IndexWriter.java:2233)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2217)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:881)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 5 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.close(BlockTreeTermsReader.java:235)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:81)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:98)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.finishCommit(SegmentInfos.java:891)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishCommit(IndexWriter.java:2953)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2942)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingTermVectorsReader.<init>(CompressingTermVectorsReader.java:127)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingTermVectorsFormat.vectorsReader(CompressingTermVectorsFormat.java:85)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:125)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:383)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.BitVector.write(BitVector.java:232)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.Lucene40LiveDocsFormat.writeLiveDocs(Lucene40LiveDocsFormat.java:103)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.writeLiveDocs(ReadersAndUpdates.java:268)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.release(IndexWriter.java:475)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.release(IndexWriter.java:460)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:289)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1717)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.waitForMerges(IndexWriter.java:2233)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2217)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:881)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 5 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3033)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:2414)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1082)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:122)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexReader.<init>(FixedGapTermsIndexReader.java:76)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:103)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesProducer.<init>(MemoryDocValuesProducer.java:123)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesFormat.fieldsProducer(MemoryDocValuesFormat.java:65)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsReader.<init>(PerFieldDocValuesFormat.java:232)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat.fieldsProducer(PerFieldDocValuesFormat.java:324)
           [junit4]   1> 	at org.apache.lucene.index.SegmentDocValues.newDocValuesProducer(SegmentDocValues.java:51)
           [junit4]   1> 	at org.apache.lucene.index.SegmentDocValues.getDocValuesProducer(SegmentDocValues.java:68)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.initDocValuesProducers(SegmentReader.java:189)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:116)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.close(BlockTermsReader.java:208)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.close(PerFieldPostingsFormat.java:237)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:171)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:258)
           [junit4]   1> 	at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:241)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.dropReaders(ReadersAndUpdates.java:169)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.dropAll(IndexWriter.java:540)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2020)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollback(IndexWriter.java:1978)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:949)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:888)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexReader.<init>(FixedGapTermsIndexReader.java:76)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:103)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.close(BlockTermsReader.java:208)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.close(PerFieldPostingsFormat.java:237)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:171)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:258)
           [junit4]   1> 	at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:241)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.dropReaders(ReadersAndUpdates.java:169)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.release(IndexWriter.java:490)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.release(IndexWriter.java:460)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:289)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:122)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.close(BlockTermsReader.java:203)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.close(PerFieldPostingsFormat.java:237)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:171)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:258)
           [junit4]   1> 	at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:241)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.dropReaders(ReadersAndUpdates.java:169)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.dropAll(IndexWriter.java:540)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2020)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollback(IndexWriter.java:1978)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:949)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:888)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.BitVector.write(BitVector.java:232)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene40.Lucene40LiveDocsFormat.writeLiveDocs(Lucene40LiveDocsFormat.java:103)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.writeLiveDocs(ReadersAndUpdates.java:268)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.commit(IndexWriter.java:564)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2788)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.<init>(BlockTreeTermsReader.java:181)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:441)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:72)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:434)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:657)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.<init>(BlockTreeTermsReader.java:120)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:441)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.close(BlockTreeTermsReader.java:235)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42DocValuesProducer.<init>(Lucene42DocValuesProducer.java:132)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsFormat.normsProducer(Lucene42NormsFormat.java:75)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:116)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingTermVectorsReader.<init>(CompressingTermVectorsReader.java:110)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingTermVectorsFormat.vectorsReader(CompressingTermVectorsFormat.java:85)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:125)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.close(BlockTermsReader.java:208)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.close(PerFieldPostingsFormat.java:237)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:171)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:258)
           [junit4]   1> 	at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:241)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.dropReaders(ReadersAndUpdates.java:169)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.dropAll(IndexWriter.java:540)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2020)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollback(IndexWriter.java:1978)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:949)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:888)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> 	Suppressed: org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 		... 21 more
           [junit4]   1> 	Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 		at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 		at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 		... 20 more
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:122)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:72)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsFormat.fieldsProducer(Lucene41PostingsFormat.java:434)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:108)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.finishCommit(SegmentInfos.java:891)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishCommit(IndexWriter.java:2953)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2942)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:98)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.<init>(Lucene41PostingsReader.java:81)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:98)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:383)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.close(BlockTreeTermsReader.java:235)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3041)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:880)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReaderForMerge(ReadersAndUpdates.java:571)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:3907)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3567)
           [junit4]   1> 	at org.apache.lucene.index.SerialMergeScheduler.merge(SerialMergeScheduler.java:40)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1879)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2826)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.close(BlockTermsReader.java:208)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.close(PerFieldPostingsFormat.java:237)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:171)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:258)
           [junit4]   1> 	at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:241)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.dropReaders(ReadersAndUpdates.java:169)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.dropAll(IndexWriter.java:540)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2020)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollback(IndexWriter.java:1978)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:949)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:888)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:132)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:98)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 12 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:406)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:744)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.readEntries(CompoundFileDirectory.java:155)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.<init>(CompoundFileDirectory.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:209)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getFieldNumberMap(IndexWriter.java:821)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:773)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   2> NOTE: reproduce with: ant test  -Dtestcase=TestIndexWriter -Dtests.method=testEmptyDirRollback -Dtests.seed=26F952CD10B5096D -Dtests.directory=NIOFSDirectory -Dtests.locale=ar_LB -Dtests.timezone=Australia/LHI -Dtests.file.encoding=ISO-8859-1
           [junit4] FAILURE 0.01s J0 | TestIndexWriter.testEmptyDirRollback <<<
           [junit4]    > Throwable #1: java.lang.AssertionError: expected a no-op close after IW.rollback() expected:<0> but was:<1>
           [junit4]    > 	at __randomizedtesting.SeedInfo.seed([26F952CD10B5096D:17E2FF9D035DAAAF]:0)
           [junit4]    > 	at org.apache.lucene.index.TestIndexWriter.testEmptyDirRollback(TestIndexWriter.java:1552)
           [junit4]    > 	at java.lang.Thread.run(Thread.java:745)
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:156)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3033)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3009)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1667)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexWriter.close(FixedGapTermsIndexWriter.java:241)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.Directory.copy(Directory.java:194)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.copy(MockDirectoryWrapper.java:931)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.copySegmentAsIs(IndexWriter.java:2691)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:2441)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1082)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 20 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:106)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:53)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsReader.close(BlockTermsReader.java:208)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.close(PerFieldPostingsFormat.java:237)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.decRef(SegmentCoreReaders.java:171)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.doClose(SegmentReader.java:258)
           [junit4]   1> 	at org.apache.lucene.index.IndexReader.decRef(IndexReader.java:241)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.dropReaders(ReadersAndUpdates.java:169)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter$ReaderPool.dropAll(IndexWriter.java:540)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollbackInternal(IndexWriter.java:2020)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.rollback(IndexWriter.java:1978)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.close(IndexWriter.java:949)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:888)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.FixedGapTermsIndexReader.<init>(FixedGapTermsIndexReader.java:76)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41ords.Lucene41WithOrds.fieldsProducer(Lucene41WithOrds.java:103)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:383)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.waitForMerges(IndexWriter.java:2233)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2217)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:881)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 5 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1717)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.waitForMerges(IndexWriter.java:2233)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2217)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:881)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 5 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:129)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:122)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileWriter.close(CompoundFileWriter.java:148)
           [junit4]   1> 	at org.apache.lucene.store.CompoundFileDirectory.close(CompoundFileDirectory.java:178)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.createCompoundFile(IndexWriter.java:4503)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:535)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:49)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsReader.close(Lucene41PostingsReader.java:145)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsReader.close(BlockTreeTermsReader.java:235)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.DirectPostingsFormat.fieldsProducer(DirectPostingsFormat.java:115)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:205)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:267)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:109)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 15 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoWriter.write(Lucene46SegmentInfoWriter.java:69)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:543)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:502)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 18 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosWriter.write(Lucene46FieldInfosWriter.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:88)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.Directory.copy(Directory.java:194)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.copy(MockDirectoryWrapper.java:931)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.copySegmentAsIs(IndexWriter.java:2691)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:2441)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1082)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.store.Directory.copy(Directory.java:194)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.copy(MockDirectoryWrapper.java:931)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.copySegmentAsIs(IndexWriter.java:2691)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:2441)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1082)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsIndexWriter.close(CompressingStoredFieldsIndexWriter.java:207)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1100)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1081)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1088)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:107)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46FieldInfosReader.read(Lucene46FieldInfosReader.java:53)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.readFieldInfos(SegmentReader.java:222)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:99)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:272)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.applyAllDeletesAndUpdates(IndexWriter.java:3077)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.maybeApplyDeletes(IndexWriter.java:3068)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2786)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 13 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene46.Lucene46SegmentInfoReader.read(Lucene46SegmentInfoReader.java:81)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:344)
           [junit4]   1> 	at org.apache.lucene.index.IndexFileDeleter.<init>(IndexFileDeleter.java:174)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:781)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1717)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.forceMerge(IndexWriter.java:1643)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1106)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 3 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4193)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.waitForMerges(IndexWriter.java:2233)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.finishMerges(IndexWriter.java:2217)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:881)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException
           [junit4]   1> 	at java.lang.Object.wait(Native Method)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.doWait(IndexWriter.java:4191)
           [junit4]   1> 	... 5 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 8 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 10 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:39)
           [junit4]   1> 	at org.apache.lucene.store.MockDirectoryWrapper.openInput(MockDirectoryWrapper.java:590)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsReader.<init>(CompressingStoredFieldsReader.java:133)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsReader(CompressingStoredFieldsFormat.java:113)
           [junit4]   1> 	at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:122)
           [junit4]   1> 	at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:100)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:132)
           [junit4]   1> 	at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:184)
           [junit4]   1> 	at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:98)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:384)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowOpeningMockIndexInputWrapper.<init>(SlowOpeningMockIndexInputWrapper.java:34)
           [junit4]   1> 	... 11 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.store.BufferedChecksumIndexInput.close(BufferedChecksumIndexInput.java:60)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:689)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:590)
           [junit4]   1> 	at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:402)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:749)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1058)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 6 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.memory.MemoryDocValuesConsumer.close(MemoryDocValuesConsumer.java:219)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$ConsumerAndSuffix.close(PerFieldDocValuesFormat.java:89)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:170)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsWriter.close(PerFieldDocValuesFormat.java:194)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.DocValuesProcessor.flush(DocValuesProcessor.java:92)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:42)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene42.Lucene42NormsConsumer.close(Lucene42NormsConsumer.java:190)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.NormsConsumer.flush(NormsConsumer.java:67)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:54)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2776)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 17 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.close(BlockTermsWriter.java:201)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.blockterms.BlockTermsWriter.write(BlockTermsWriter.java:164)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:635)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:372)
           [junit4]   1> 	at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:87)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1093)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 16 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:882)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.shutdown(IndexWriter.java:865)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1050)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 9 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:42)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.slowFileExists(IndexWriter.java:4623)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.filesExist(IndexWriter.java:4215)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.startCommit(IndexWriter.java:4281)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:2828)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:2935)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:2902)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1103)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.store.SlowClosingMockIndexInputWrapper.close(SlowClosingMockIndexInputWrapper.java:40)
           [junit4]   1> 	... 7 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.lucene41.Lucene41PostingsWriter.close(Lucene41PostingsWriter.java:588)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.closeWhileHandlingException(IOUtils.java:88)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.close(BlockTreeTermsWriter.java:1144)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.BlockTreeTermsWriter.write(BlockTreeTermsWriter.java:371)
           [junit4]   1> 	at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsWriter.write(PerFieldPostingsFormat.java:178)
           [junit4]   1> 	at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:108)
           [junit4]   1> 	at org.apache.lucene.index.TermsHash.flush(TermsHash.java:116)
           [junit4]   1> 	at org.apache.lucene.index.DocInverter.flush(DocInverter.java:53)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:81)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 19 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.close(ThrottledIndexOutput.java:74)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.close(CompressingStoredFieldsWriter.java:141)
           [junit4]   1> 	at org.apache.lucene.util.IOUtils.close(IOUtils.java:147)
           [junit4]   1> 	at org.apache.lucene.index.StoredFieldsProcessor.flush(StoredFieldsProcessor.java:78)
           [junit4]   1> 	at org.apache.lucene.index.TwoStoredFieldsConsumers.flush(TwoStoredFieldsConsumers.java:41)
           [junit4]   1> 	at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:80)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:465)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:524)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.postUpdate(DocumentsWriter.java:390)
           [junit4]   1> 	at org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:488)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1430)
           [junit4]   1> 	at org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1403)
           [junit4]   1> 	at org.apache.lucene.index.TestIndexWriter$IndexerThreadInterrupt.run(TestIndexWriter.java:1086)
           [junit4]   1> Caused by: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at java.lang.Thread.sleep(Native Method)
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:122)
           [junit4]   1> 	... 14 more
           [junit4]   1> TEST: got interrupt
           [junit4]   1> org.apache.lucene.util.ThreadInterruptedException: java.lang.InterruptedException: sleep interrupted
           [junit4]   1> 	at org.apache.lucene.util.ThrottledIndexOutput.sleep(ThrottledIndexOutput.java:124)
           [junit4]   1> 	at org.ap