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https://issues.apache.org/jira/browse/AXIS2-1053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michele Mazzucco reopened AXIS2-1053:
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Dims,
I'm not sure about this change. If you want to make the access to "handlers"
thread safe you should synchronize other methods as well.
Michele
> ConcurrentModificationException when concurrent threads try to engage the
> Addressing module
> -------------------------------------------------------------------------------------------
>
> Key: AXIS2-1053
> URL: https://issues.apache.org/jira/browse/AXIS2-1053
> Project: Axis 2.0 (Axis2)
> Issue Type: Bug
> Components: client-api
> Environment: Windows XP SP2, mac OS X 10.4.7, jdk 1.5.0_06, axis2
> nightly build 17/08/06
> Reporter: Michele Mazzucco
> Assignee: Deepal Jayasinghe
> Priority: Blocker
> Attachments: test.tar.gz
>
>
> Multiple sender objects are used to concurrently send (asynchronous)
> messages. The threads are created using a ExecutorService object and each
> thread creates a ServiceClient using the provided configuration, which is:
> ConfigurationContext configurationContext =
> ConfigurationContextFactory.createConfigurationContextFromFileSystem(null,
> null);
> HttpClient httpClient = new HttpClient(new
> MultiThreadedHttpConnectionManager());
> configurationContext.setProperty(HTTPConstants.REUSE_HTTP_CLIENT,
> Boolean.TRUE);
> configurationContext.setProperty(HTTPConstants.CACHED_HTTP_CLIENT,
> httpClient);
> The problem arises when the threads try to (concurrently) engage the
> Addressing module:
> Exception in thread "pool-1-thread-2"
> java.util.ConcurrentModificationException
> [java] at
> java.util.AbstractList$Itr.checkForComodification(AbstractList.java:449)
> [java] at java.util.AbstractList$Itr.next(AbstractList.java:420)
> [java] at org.apache.axis2.engine.Phase.addHandler(Phase.java:136)
> [java] at
> org.apache.axis2.phaseresolver.PhaseHolder.addHandler(PhaseHolder.java:64)
> [java] at
> org.apache.axis2.phaseresolver.PhaseResolver.engageModuleToOperation(PhaseResolver.java:191)
> [java] at
> org.apache.axis2.description.AxisOperation.engageModuleToOperation(AxisOperation.java:154)
> [java] at
> org.apache.axis2.description.AxisOperation.engageModule(AxisOperation.java:128)
> [java] at
> org.apache.axis2.description.AxisService.engageModule(AxisService.java:479)
> [java] at
> org.apache.axis2.client.ServiceClient.engageModule(ServiceClient.java:271)
> [java] at ncl.qosp.test.functional.client.Sender.run(Sender.java:134)
> [java] at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
> [java] at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
> [java] at java.lang.Thread.run(Thread.java:613)
> Please find attached a sample application (a readme file including the build
> instructions is probvided) to reproduce the problem.
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