[SOLR-3068] Occasional NPE in ThreadDumpHandler

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 4.0-ALPHA
• Fix Version/s: 3.6, 4.0-ALPHA
• Assignee: Sami Siren
• Reporter: Sami Siren
• Created: 28/Jan/12 18:25
• Updated: 10/May/13 10:40
• Resolved: 20/Feb/12 15:02

Description

Seen this now few times, looks like the thread has died a way between requesting the ids and requesting the ThreadInfos.

SEVERE: java.lang.NullPointerException
at org.apache.solr.handler.admin.ThreadDumpHandler.getThreadInfo(ThreadDumpHandler.java:87)
at org.apache.solr.handler.admin.ThreadDumpHandler.handleRequestBody(ThreadDumpHandler.java:75)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1523)
at org.apache.solr.util.TestHarness.query(TestHarness.java:354)
at org.apache.solr.util.TestHarness.query(TestHarness.java:337)
at org.apache.solr.SolrTestCaseJ4.assertQ(SolrTestCaseJ4.java:397)
at org.apache.solr.MinimalSchemaTest.testAllConfiguredHandlers(MinimalSchemaTest.java:116)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.rules.TestWatchman$1.evaluate(TestWatchman.java:48)
at org.apache.lucene.util.LuceneTestCase$3$1.evaluate(LuceneTestCase.java:529)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:165)
at org.apache.lucene.util.LuceneTestCaseRunner.runChild(LuceneTestCaseRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at junit.framework.JUnit4TestAdapter.run(JUnit4TestAdapter.java:39)
at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:420)
at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.launch(JUnitTestRunner.java:911)
at org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:743)