What is even more 'funny' is that ebMS, as a messaging spec also has a kind of state in it. Sending a message, waiting for ack's, if not received in duetime resend the message, have a maximum number of retries etc... could also very wel be moddeled in jpdl or as a dsl on top of the pvm. Not sure if and how a dsl makes sense here since there is no xml format besides probably a CPA. But I 'thought' of it and came to the conclusion I did not have the time... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4243122#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...