One more question: I suppose you are thinking the dispatch method must throw an exception? Spec doesn't define one for this case, have you any prefered name or hirearchy? If you get some times take a look at my post on design forum because the modifications proposed there could be done in the same patch if you agree (they also are about notification send errors). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3980997#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...