For listing subscriptions it returns a list of SubscriptionInfo objects, which are basically value objects holding subscription related data. For listing messages, it currently just returns the actual message objects. I was thinking whether to create value objects for the messages too, but I'm not sure. Currently the caller will have to include the JBM jar on the caller side - not sure how putting in the interface file would help - can you elucidate? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3999826#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...