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https://issues.apache.org/jira/browse/AXIS2-5152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122685#comment-13122685
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Udayanga Wickramasinghe edited comment on AXIS2-5152 at 10/7/11 10:52 AM:
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i am attaching the patch which uses concurrent Hash Map for this issue . please
review and commit , the most appropriate solution. i think both soultions are
correct , but personally i prefer the patch i submitted earlier since it would
be the most simple and consistent solution with the existing implementation :)
was (Author: udayan...@wso2.com):
i am attaching the patch which uses concurrent Hash Map for this issue .
please review and commit , the most appropriate solution. personally i prefer
the patch i submitted earlier since it would be the most simple and consistent
solution with the existing implementation :)
> RepositoryListener ConcurrentModification Exception when accessing
> DeploymentEngine deployerMap
> -----------------------------------------------------------------------------------------------
>
> Key: AXIS2-5152
> URL: https://issues.apache.org/jira/browse/AXIS2-5152
> Project: Axis2
> Issue Type: Bug
> Components: kernel
> Reporter: Udayanga Wickramasinghe
> Attachments: AXIS2-5152.patch, AXIS2-5152_update.patch
>
>
> Axis2 DeploymentEngine deployerMap seems to be not thread safe. Following
> exception can be thrown when there is a high concurrent acceess scenario with
> multiple deployers in place..
> Exception in thread "Timer-3" java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$EntryIterator.next(HashMap.java:834)
> at java.util.HashMap$EntryIterator.next(HashMap.java:832)
> at
> org.apache.axis2.deployment.RepositoryListener.loadOtherDirectories(R
> epositoryListener.java:270)
> at
> org.apache.axis2.deployment.RepositoryListener.checkServices(Reposito
> ryListener.java:253)
> at
> org.apache.axis2.deployment.RepositoryListener.startListener(Reposito
> ryListener.java:365)
> at
> org.apache.axis2.deployment.scheduler.SchedulerTask.checkRepository(S
> chedulerTask.java:73)
> at
> org.apache.axis2.deployment.scheduler.SchedulerTask.run(SchedulerTask
> .java:94)
> at
> org.apache.axis2.deployment.scheduler.Scheduler$SchedulerTimerTask.ru
> n(Scheduler.java:93)
> at java.util.TimerThread.mainLoop(Timer.java:512)
> at java.util.TimerThread.run(Timer.java:462)
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