"mark.little(a)jboss.com" wrote : We're talking about EPRs in terms of addresses, not interaction sequences. So the EPR referenced in the link is out-of-date. It'll be more like: | | public class EPR | { | public void setAddr (URI uri); | public URI getAddr () throws URISyntaxException; | public MetaData setters/getters | } Grand. That thread I linked there actually talks about both i.e. it breaks what was the old EPR structure into 2 structures (based on the WS-Addressing spec): 1) A new EPR similar to what you outline above and 2) An Interaction/Invocation structure. Guess we need to discuss this on a seperate thread. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3970984#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...