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http://jira.jboss.com/jira/browse/JBMESSAGING-978?page=comments#action_12... ]
Tim Fox commented on JBMESSAGING-978:
-------------------------------------
Please can you describe your fix in more detail, just saying "line 968"
doesn't help much, since the code has changed since then SP1. (Ok I can checkout the
SP1 branch but this is a pain).
If you can describe your fix in relation to the TRUNK code, that would be much better.
NullPointerException within
DefaultClusteredPostOffice.handleMessagePullResult()
--------------------------------------------------------------------------------
Key: JBMESSAGING-978
URL:
http://jira.jboss.com/jira/browse/JBMESSAGING-978
Project: JBoss Messaging
Issue Type: Bug
Components: JMS Clustering
Affects Versions: 1.2.0.SP1
Environment: CentOS 4, JBoss AS 4.0.5, Sun JDK 1.5.07, MySQL 5.x for persistence.
Six node cluster.
Reporter: Ray Ploski
Assigned To: Tim Fox
Attachments: DefaultClusteredPostOffice.java
After sending about 10,000 messages through a clustered JMS deployment we received the
following error, locking up the topic. I worked around it by adding a null check to the
condition within handleMessagePullResult(). Fix is for line 968 of
org.jboss.messaging.core.plugin.postoffice.cluster.DefaultClusteredPostOffice is listed at
the end of the description.
2007-05-31 11:41:39,130 ERROR @IncomingMessageHandler (channel=DefaultPostOffice)
[DefaultClusteredPostOffice] Caught Exception in Receiver
java.lang.NullPointerException
at
org.jboss.messaging.core.plugin.postoffice.cluster.DefaultClusteredPostOffice.handleMessagePullResult(DefaultClusteredPostOffice.java:968)
at
org.jboss.messaging.core.plugin.postoffice.cluster.PullMessageResultRequest.execute(PullMessageResultRequest.java:105)
at
org.jboss.messaging.core.plugin.postoffice.cluster.DefaultClusteredPostOffice$DataReceiver.receive(DefaultClusteredPostOffice.java:2461)
at org.jgroups.JChannel.up(JChannel.java:1102)
at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:377)
at org.jgroups.stack.ProtocolStack.receiveUpEvent(ProtocolStack.java:393)
at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
at org.jgroups.protocols.pbcast.GMS.up(GMS.java:771)
at org.jgroups.stack.Protocol.receiveUpEvent(Protocol.java:488)
at org.jgroups.protocols.pbcast.GMS.receiveUpEvent(GMS.java:791)
at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
at org.jgroups.protocols.VIEW_SYNC.up(VIEW_SYNC.java:154)
at org.jgroups.stack.Protocol.receiveUpEvent(Protocol.java:488)
at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
at org.jgroups.protocols.FRAG.up(FRAG.java:168)
at org.jgroups.stack.Protocol.receiveUpEvent(Protocol.java:488)
at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:258)
at org.jgroups.stack.Protocol.receiveUpEvent(Protocol.java:488)
at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
at org.jgroups.protocols.UNICAST.handleDataReceived(UNICAST.java:476)
at org.jgroups.protocols.UNICAST.up(UNICAST.java:206)
at org.jgroups.stack.Protocol.receiveUpEvent(Protocol.java:488)
at org.jgroups.stack.Protocol.passUp(Protocol.java:538)
at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:569)
at org.jgroups.stack.Protocol.receiveUpEvent(Protocol.java:488)
FIX:
if (remoteQueue == null || remoteNodeId != remoteQueue.getNodeId() )
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