I was a little bit confused about the hierarchy defined on state. So I could produce a diagram showing how HierarchicalStateSupport would define the dependency between Connections,Sessions, Producers, etc. (look at the wiki page again with the update): http://wiki.jboss.org/wiki/Wiki.jsp?page=NewMessagingHADesign I have done some refactoring into package state, just to show these relationships in a better way. I will run testcases locally and commit these changes after that. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976394#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...