[jboss-jira] [JBoss JIRA] Created: (JGRP-617) ConcurrentModificationException sending notifications in ReplicatedHashMap.
ConcurrentModificationException sending notifications in ReplicatedHashMap.
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Key: JGRP-617
URL: http://jira.jboss.com/jira/browse/JGRP-617
Project: JGroups
Issue Type: Bug
Affects Versions: 2.6
Reporter: Robert Newson
Assigned To: Bela Ban
ReplicatedHashMap does this at line 587;
for(Notification notif: notifs)
notif.contentsSet(map);
which causes a ConcurrentModificationException if the 'notifs' list is being
modified during the execution. This class should use an Iterator over the 'notifs'
list instead. There are several places where this occurs but this is illustrative.
2007-11-06 15:47:07,948 ERROR [Multiplexer,udp,192.168.164.229:34526] log.GeronimoLog
(GeronimoLog.java:108) - uncaught exception in
Thread[Multiplexer,udp,192.168.164.229:34526,10,MultiplexerThreads] (thread
group=org.jgroups.util.Util$1[name=JGroups,maxpri=10] )
java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at org.jgroups.blocks.ReplicatedHashMap._putAll(ReplicatedHashMap.java:587)
at org.jgroups.blocks.ReplicatedHashMap.setState(ReplicatedHashMap.java:716)
at
org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.handleUpEvent(MessageDispatcher.java:645)
at
org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:745)
at org.jgroups.JChannel.up(JChannel.java:1069)
at org.jgroups.mux.Multiplexer$Task.run(Multiplexer.java:1026)
at org.jgroups.mux.Multiplexer$ExecuteTask.run(Multiplexer.java:1050)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
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