the message style endpoint is harder to extend, i think. because in the command service based endpoint, you only have to explain how commands java classes have to be made available on the server side and how the jaxb mappings have to be added. that is a simpler extension story then with a message style endpoint. right ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968335#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...