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From "Michele Mazzucco (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (AXIS2-1053) ConcurrentModificationException when concurrent threads try to engage the Addressing module
Date Wed, 24 Jan 2007 12:12:49 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-1053?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michele Mazzucco reopened AXIS2-1053:
-------------------------------------


> ConcurrentModificationException when concurrent threads try to engage the Addressing
module
> -------------------------------------------------------------------------------------------
>
>                 Key: AXIS2-1053
>                 URL: https://issues.apache.org/jira/browse/AXIS2-1053
>             Project: Apache 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
>         Assigned To: Deepal Jayasinghe
>            Priority: Critical
>         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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