me again ... Meanwhile I found second doc source http://www.ibm.com/developerworks/websphere/library/techarticles/0710_rit... Configuring my JMS client the way described there avoids the startup messages. Now I get an Exception saying javax.jms.InvalidDestinationException: Destination is not an instance of SpyDestination queue://XNMERC1T/XNMERC1T.IQ.RWBTEST what looks to me like the message type sent doesn't fit the receiver's capabilities - and therefore leads me back to my configuration. The change I suspect to make the difference between my first post and now is that I substituted the mbean configuration from <mbean code="org.jboss.resource.deployment.AdminObject" | name="jboss.jca:service=WASDestination,name=QueueName"> to <mbean code="org.jboss.resource.deployment.AdminObject" | name="jca.wmq:name=rwb-wsmq"> | I don't understand at all what I've done, it's just pasted from my documentation. Can anyone explain or give me a hint? CU, Thomas View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4184873#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...