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From "Pawel Niewiadomski (JIRA)" <>
Subject [jira] Created: (AMQ-991) ActiveMQ 4.0.1 crashes when using client from trunk.
Date Wed, 18 Oct 2006 14:01:17 GMT
ActiveMQ 4.0.1 crashes when using client from trunk.

                 Key: AMQ-991
             Project: ActiveMQ
          Issue Type: Bug
          Components: NMS (C# client)
            Reporter: Pawel Niewiadomski

I tried today to use C# client from trunk agains ActiveMQ 4.0.1 server. This caused server
to die totally. Following error message was shown by server:

Exception in thread "ActiveMQ Transport: tcp:///" java.lang.Illega
lArgumentException: Invalid version: 2, could not load org.apache.activemq.openwire.v2.MarshallerFactory
        at org.apache.activemq.openwire.OpenWireFormat.setVersion(
        at org.apache.activemq.openwire.OpenWireFormat.renegociatWireFormat(
        at org.apache.activemq.transport.WireFormatNegotiator.onCommand(
        at org.apache.activemq.transport.InactivityMonitor.onCommand(
        at org.apache.activemq.transport.TransportSupport.doConsume(
Caused by: java.lang.ClassNotFoundException: org.apache.activemq.openwire.v2.MarshallerFactory
        at org.apache.activemq.util.ClassLoading.loadClass(
        at org.apache.activemq.openwire.OpenWireFormat.setVersion(
        ... 6 more

I then used ActiveMQ 4.0.2 server and it worked. Isn't that client should automatically negotiate
protocol with server? Why server after this error dies totally? (new client connecting were
not handled at all, everything died).

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