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List:       openjms-developer
Subject:    [openjms-developer] [ openjms-Bugs-952855 ] ConcurrentModificationException in Queue model
From:       "SourceForge.net" <noreply () sourceforge ! net>
Date:       2004-05-15 5:53:14
Message-ID: E1BOs6k-00070d-00 () sc8-sf-web3 ! sourceforge ! net
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Bugs item #952855, was opened at 2004-05-13 06:55
Message generated for change (Comment added) made by tanderson
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=474136&aid=952855&group_id=54559

Category: message engine
Group: v0.7.6
>Status: Closed
>Resolution: Duplicate
Priority: 5
Submitted By: Francis ANDRE (francisandre)
Assigned to: Jim Alateras (jalateras)
Summary: ConcurrentModificationException in Queue model

Initial Comment:
Hi

I got this ConcurrentModificationException when loading 
the Queue model of OpenJMS with large amount of small 
messages in a stress test. This bug is just a reminder for 
now since I cannot reproduce it and it is quite sporadic.

Regards


java.util.ConcurrentModificationException
        at java.util.TreeMap$EntryIterator.nextEntry
(TreeMap.java:1026)
        at java.util.TreeMap$KeyIterator.next
(TreeMap.java:1051)
        at java.util.AbstractCollection.toArray
(AbstractCollection.java:125)
        at 
org.exolab.jms.messagemgr.MessageQueue.toArray
(MessageQueue.java:119)

        at 
org.exolab.jms.messagemgr.MessageCache.getHandleArra
y(MessageCache.ja
va:190)
        at 
org.exolab.jms.messagemgr.DestinationCache.toMessage
Array(Destination
Cache.java:528)
        at 
org.exolab.jms.messagemgr.QueueDestinationCache.getM
essage(QueueDesti
nationCache.java:507)
        at 
org.exolab.jms.messagemgr.QueueConsumerEndpoint.get
MessageFromCache(Q
ueueConsumerEndpoint.java:310)
        at 
org.exolab.jms.messagemgr.QueueConsumerEndpoint.rece
iveMessage(QueueC
onsumerEndpoint.java:223)
        at 
org.exolab.jms.server.JmsServerSession.receiveMessage
(JmsServerSessio
n.java:438)
        at 
org.exolab.jms.server.rmi.RmiJmsServerSession.receiveMe
ssage(RmiJmsSe
rverSession.java:204)
        at sun.reflect.GeneratedMethodAccessor48.invoke
(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke
(Method.java:324)
        at sun.rmi.server.UnicastServerRef.dispatch
(UnicastServerRef.java:261)
        at sun.rmi.transport.Transport$1.run
(Transport.java:148)
        at java.security.AccessController.doPrivileged
(Native Method)
        at sun.rmi.transport.Transport.serviceCall
(Transport.java:144)
        at 
sun.rmi.transport.tcp.TCPTransport.handleMessages
(TCPTransport.java:4
60)
        at 
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.ru
n(TCPTransport
.java:701)
        at java.lang.Thread.run(Thread.java:534)
        at 
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFr
omServer(Stream
RemoteCall.java:247)
        at sun.rmi.transport.StreamRemoteCall.executeCall
(StreamRemoteCall.java:
223)
        at sun.rmi.server.UnicastRef.invoke
(UnicastRef.java:133)
        at 
org.exolab.jms.server.rmi.RmiJmsServerSession_Stub.recei
veMessage(Unk
nown Source)
        at 
org.exolab.jms.client.rmi.RmiJmsSessionStub.receiveMess
age(RmiJmsSess
ionStub.java:196)
        at 
org.exolab.jms.client.JmsSession.retrieveMessage
(JmsSession.java:728)

        at 
org.exolab.jms.client.JmsMessageConsumer.retrieveMessa
ge(JmsMessageCo
nsumer.java:322)
        at 
org.exolab.jms.client.JmsMessageConsumer.receive
(JmsMessageConsumer.j
ava:202)
        at com.pac.iwk.tm.Loader$Load.run
(Loader.java:166)
        at java.lang.Thread.run(Thread.java:536)

----------------------------------------------------------------------

>Comment By: Tim Anderson (tanderson)
Date: 2004-05-15 15:53

Message:
Logged In: YES 
user_id=557161

This was fixed in 0.7.6.1.
See http://sourceforge.net/tracker/index.php?
func=detail&aid=945783&group_id=54559&atid=474136

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=474136&aid=952855&group_id=54559


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