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https://issues.apache.org/jira/browse/OPENJPA-398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635384#action_12635384
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Michael Dick commented on OPENJPA-398:
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Hi Heiko, if you have a testcase available and can attach it to the issue that
would help greatly.
> ConcurrentModificationException at org.apache.openjpa.kernel.BrokerImpl
> -----------------------------------------------------------------------
>
> Key: OPENJPA-398
> URL: https://issues.apache.org/jira/browse/OPENJPA-398
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.2.0
> Environment: JDK Sun 1.6.0.06 on Ubuntu
> Reporter: Alexander
> Priority: Critical
>
> Hello.
>
> I'm trying to use OpenJPA in my project. I use Liferay based on Toncat as
> front-end.
> I use OpenJPA 1.0.0
> Today I have got strange exception -
> 10:35:55,785 ERROR ConcurrentModificationException at
> java.util.HashMap$HashIterator.nextEntry(HashMap.java:787) at
> java.util.HashMap$KeyIterator.next(HashMap.java:823) at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.dirtyCheck(BrokerImpl.java:4612)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.access$000(BrokerImpl.java:4352)
> at
> org.apache.openjpa.kernel.BrokerImpl.hasTransactionalObjects(BrokerImpl.java:3731)
> at
> org.apache.openjpa.kernel.BrokerImpl.setDirty(BrokerImpl.java:3848) at
> org.apache.openjpa.kernel.StateManagerImpl.setPCState(StateManagerImpl.java:207)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1532)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1471)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirtyCheck(StateManagerImpl.java:808)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.dirtyCheck(BrokerImpl.java:4612)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.access$000(BrokerImpl.java:4352)
> at
> org.apache.openjpa.kernel.BrokerImpl.hasTransactionalObjects(BrokerImpl.java:3731)
> at
> org.apache.openjpa.kernel.BrokerImpl.setDirty(BrokerImpl.java:3848) at
> org.apache.openjpa.kernel.StateManagerImpl.setPCState(StateManagerImpl.java:207)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1532)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirty(StateManagerImpl.java:1471)
> at
> org.apache.openjpa.kernel.StateManagerImpl.dirtyCheck(StateManagerImpl.java:808)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.dirtyCheck(BrokerImpl.java:4612)
> at
> org.apache.openjpa.kernel.BrokerImpl$ManagedCache.access$000(BrokerImpl.java:4352)
>
> It happens only, when I deploy application on portal, and only when service
> is first-time accessed.
> All tests work fine.
>
> Exception throws in get method
> Transactions are managed by Spring and i use Spring agent.
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