[teiid-issues] [JBoss JIRA] Commented: (TEIID-1445) ConcurrentModificationException during the startup of the Server

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-1445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576833#comment-12576833 ] 

Steven Hawkins commented on TEIID-1445:
---------------------------------------

This should only occur with dynamic vdbs, and only if the source metadata load cannot be loaded from cache.  If the error occurs the workaround would be to redeploy the vdb or restart the server.  The fix is to make access to the model problem / validity checking  thread safe.

> ConcurrentModificationException during the startup of the Server
> ----------------------------------------------------------------
>
>                 Key: TEIID-1445
>                 URL: https://issues.jboss.org/browse/TEIID-1445
>             Project: Teiid
>          Issue Type: Bug
>          Components: Server
>    Affects Versions: 7.2
>            Reporter: Ramesh Reddy
>            Assignee: Steven Hawkins
>            Priority: Minor
>             Fix For: 7.3
>
>
> Seems like this is some timing issue.
> java.util.ConcurrentModificationException
> 	at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
> 	at java.util.AbstractList$Itr.next(AbstractList.java:343)
> 	at org.teiid.adminapi.impl.ModelMetaData.getValidationErrors(ModelMetaData.java:222)
> 	at org.teiid.adminapi.impl.ModelMetaData.getErrors(ModelMetaData.java:210)
> 	at org.teiid.adminapi.impl.VDBMetaData.getValidityErrors(VDBMetaData.java:249)
> 	at org.teiid.adminapi.impl.VDBMetaData.isValid(VDBMetaData.java:264)
> 	at org.teiid.deployers.VDBDeployer.loadMetadata(VDBDeployer.java:355)
> 	at org.teiid.deployers.VDBDeployer.access$2(VDBDeployer.java:315)
> 	at org.teiid.deployers.VDBDeployer$1.run(VDBDeployer.java:308)
> 	at org.jboss.util.threadpool.RunnableTaskWrapper.run(RunnableTaskWrapper.java:147)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:619)

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