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From "Julian Reschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-187) ConcurrentModificationException during gc run
Date Mon, 23 Jul 2012 16:01:35 GMT

    [ https://issues.apache.org/jira/browse/OAK-187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13420730#comment-13420730
] 

Julian Reschke commented on OAK-187:
------------------------------------

Saw that today as well.
                
> ConcurrentModificationException during gc run
> ---------------------------------------------
>
>                 Key: OAK-187
>                 URL: https://issues.apache.org/jira/browse/OAK-187
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: mk
>            Reporter: Michael Dürig
>
> I sporadically encounter a {{ConcurrentModificationException}} when building with {{-PintegrationTesting}}.
This happens while the {{JcrTckTest}} suite runs and is only printed to the console. No tests
fail.
> {code}
> Running org.apache.jackrabbit.oak.jcr.JcrTckIT
> java.util.ConcurrentModificationException
> 	at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
> 	at java.util.TreeMap$EntryIterator.next(TreeMap.java:1136)
> 	at java.util.TreeMap$EntryIterator.next(TreeMap.java:1131)
> 	at org.apache.jackrabbit.mk.store.DefaultRevisionStore.markBranches(DefaultRevisionStore.java:562)
> 	at org.apache.jackrabbit.mk.store.DefaultRevisionStore.gc(DefaultRevisionStore.java:498)
> 	at org.apache.jackrabbit.mk.store.DefaultRevisionStore$2.run(DefaultRevisionStore.java:160)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
> 	at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
> 	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	at java.lang.Thread.run(Thread.java:680)
> Tests run: 1906, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 65.443 sec
> {code}

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