[CXF-2105] The CxfBusLifeCycleManager can cause ConcurrentModificationExceptions to be thrown

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.10
• Fix Version/s: 2.0.11, 2.1.5
• Component/s: Core
• Assignee: Daniel Kulp
• Reporter: Eamonn Dwyer
• Created: 11/Mar/09 18:10
• Updated: 24/Apr/09 21:17
• Resolved: 11/Mar/09 18:47

Description

The CxfBusLifeCycleManager has a list of listeners. in a number of occasions it iterates over this list and makes calls out to each listener. Each listener can then call back into the CxfBusLifeCycleManager and potentially try access the listeners. This causes the exception. Typically the exception thrown looks like.

java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:449)
at java.util.AbstractList$Itr.next(AbstractList.java:420)
at org.apache.cxf.buslifecycle.CXFBusLifeCycleManager.preShutdown(CXFBusLifeCycleManager.java:81)
at org.apache.cxf.bus.CXFBusImpl.shutdown(CXFBusImpl.java:122)
at org.apache.cxf.testutil.common.AbstractBusClientServerTestBase.deleteStaticBus(AbstractBusClientServerTestBase.java:89)
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:585)
at org.junit.internal.runners.BeforeAndAfterRunner.invokeMethod(BeforeAndAfterRunner.java:74)
at org.junit.internal.runners.BeforeAndAfterRunner.runAfters(BeforeAndAfterRunner.java:65)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:37)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:138)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:125)
at org.apache.maven.surefire.Surefire.run(Surefire.java:132)
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:585)
at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:290)
at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:818)