[jboss-jira] [JBoss JIRA] (JGRP-2290) ArrayIndexOutOfBoundsException in FD_SOCK

[Dan Berindei (JIRA)]

Dan Berindei created JGRP-2290:
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             Summary: ArrayIndexOutOfBoundsException in FD_SOCK
                 Key: JGRP-2290
                 URL: https://issues.jboss.org/browse/JGRP-2290
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 4.0.13
            Reporter: Dan Berindei
            Assignee: Bela Ban


{noformat}
23:30:00.046 [INFO] Running org.infinispan.test.hibernate.cache.commons.entity.EntityRegionAccessStrategyTest
Exception in thread "FD_SOCK pinger-10,EntityRegionAccessStrategyTest-NodeJ-23765" java.lang.ArrayIndexOutOfBoundsException: 0
	at java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:388)
	at java.util.concurrent.CopyOnWriteArrayList.get(CopyOnWriteArrayList.java:397)
	at org.jgroups.util.Util.pickNext(Util.java:2656)
	at org.jgroups.protocols.FD_SOCK.determinePingDest(FD_SOCK.java:762)
	at org.jgroups.protocols.FD_SOCK.run(FD_SOCK.java:407)
	at java.lang.Thread.run(Thread.java:748)
{noformat}

The {{pingable_mbrs}} and {{suspected_mbrs}} collections are not read that often, so I suggest using regular synchronization instead of {{CopyOnWriteList}}.



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