[infinispan-issues] [JBoss JIRA] (ISPN-2428) ConcurrentModificationException in StateConsumerImpl

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-2428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-2428:
-------------------------------

        Status: Resolved  (was: Pull Request Sent)
    Resolution: Done


Integrated.
                
> ConcurrentModificationException in StateConsumerImpl
> ----------------------------------------------------
>
>                 Key: ISPN-2428
>                 URL: https://issues.jboss.org/browse/ISPN-2428
>             Project: Infinispan
>          Issue Type: Bug
>          Components: State transfer
>    Affects Versions: 5.2.0.Beta2
>            Reporter: Radim Vansa
>            Assignee: Adrian Nistor
>
> In StateConsumerImpl.onTopologyUpdate(...) the transfersBySource.keySet() is iterated while under some conditions transfersBySource.remove(...) is called. As the iterated keySet is backed by the HashMap itself modifications during iteration are not permitted and I got
> {code}
> java.util.ConcurrentModificationException
> 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
> 	at java.util.HashMap$KeyIterator.next(HashMap.java:928)
> 	at org.infinispan.statetransfer.StateConsumerImpl.onTopologyUpdate(StateConsumerImpl.java:215)
> 	at org.infinispan.statetransfer.StateTransferManagerImpl.doTopologyUpdate(StateTransferManagerImpl.java:186)
> 	at org.infinispan.statetransfer.StateTransferManagerImpl.access$000(StateTransferManagerImpl.java:58)
> 	at org.infinispan.statetransfer.StateTransferManagerImpl$1.updateConsistentHash(StateTransferManagerImpl.java:117)
> 	at org.infinispan.topology.LocalTopologyManagerImpl.handleConsistentHashUpdate(LocalTopologyManagerImpl.java:194)
> 	at org.infinispan.topology.CacheTopologyControlCommand.doPerform(CacheTopologyControlCommand.java:165)
> 	at org.infinispan.topology.CacheTopologyControlCommand.perform(CacheTopologyControlCommand.java:137)
> 	at org.infinispan.topology.ClusterTopologyManagerImpl$3.call(ClusterTopologyManagerImpl.java:554)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> 	at java.lang.Thread.run(Thread.java:722)
> {code}

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