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From "Matthew Good (JIRA)" <>
Subject [jira] [Created] (AMQNET-332) Rollback fails with Null Reference
Date Tue, 28 Jun 2011 21:20:28 GMT
Rollback fails with Null Reference

                 Key: AMQNET-332
             Project: ActiveMQ .Net
          Issue Type: Bug
          Components: NMS
    Affects Versions: 1.5.0
         Environment: Windows .NET client
            Reporter: Matthew Good
            Assignee: Jim Gomes

I call rollback several times and retries occur as expected.  At some point, the rollback
fails and I no longer receive the message.  I would like to give information on how to produce
this but it just happens randomly.  I'm hoping from the stack trace, you might have an idea
of the cause.  

There are no errors logged on the server.  This error is on the client side:

Message: Unable to rollback transaction.
Stack:SessionExecutor.Dispatch => MessageConsumer.Dispatch => MessageListenerDelegate.OnMessage
System.NullReferenceException: Object reference not set to an instance of an object.
   at Apache.NMS.ActiveMQ.Util.SimplePriorityMessageDispatchChannel.GetPriority(MessageDispatch
   at Apache.NMS.ActiveMQ.Util.SimplePriorityMessageDispatchChannel.GetList(MessageDispatch
   at Apache.NMS.ActiveMQ.Util.SimplePriorityMessageDispatchChannel.EnqueueFirst(MessageDispatch
   at Apache.NMS.ActiveMQ.SessionExecutor.ExecuteFirst(MessageDispatch dispatch)
   at Apache.NMS.ActiveMQ.Session.Redispatch(MessageDispatchChannel channel)
   at Apache.NMS.ActiveMQ.MessageConsumer.Rollback()
   at Apache.NMS.ActiveMQ.MessageConsumer.MessageConsumerSynchronization.AfterRollback()
   at Apache.NMS.ActiveMQ.TransactionContext.AfterRollback()
   at Apache.NMS.ActiveMQ.TransactionContext.Rollback()
   at Apache.NMS.ActiveMQ.Session.DoRollback()
   at Apache.NMS.ActiveMQ.Session.Rollback()
   at Ipc.General.ActiveMQ.ActiveMqListenerBase.MessageListenerDelegate.OnMessage(IMessage

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