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From Jochen Zink <jochenl...@web.de>
Subject Maybe a ActiveMQ Bug?
Date Wed, 04 Jun 2008 07:06:22 GMT
Hello,

We are running Geronimo 2.0.1. We are using a JMS-Queue with one Receiver (MDB). Sometimes
we get this Exception on Geronimo’s stdout:
Exception in thread "ActiveMQ Transport: tcp://localhost/127.0.0.1:61616" java.lang.IndexOutOfBoundsException:
Index: 0, Size: 0
 	at edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList.remove(CopyOnWriteArrayList.java:346)
 	at org.apache.activemq.ra.ServerSessionPoolImpl.getExistingServerSession(ServerSessionPoolImpl.java:159)
	at org.apache.activemq.ra.ServerSessionPoolImpl.getServerSession(ServerSessionPoolImpl.java:114)
	at org.apache.activemq.ActiveMQConnectionConsumer.dispatch(ActiveMQConnectionConsumer.java:136)
 	at org.apache.activemq.ActiveMQConnection.onCommand(ActiveMQConnection.java:1479)
 	at org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:95)
 	at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:65)
 	at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:133)
	at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:122)
	at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:84)
 	at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:137)
 	at java.lang.Thread.run(Thread.java:619)

After this, the ActiveMQ System seems to hang. Only a restart helps. Is this a Bug? I found
this:
http://issues.apache.org/activemq/browse/AMQ-1246

It sounds a little bit similar.

Is there any workaround known?

Thanks al lot!
Regards
Jochen

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