Okay, I have some spare time waiting on a support case so I will try out the following - Create the interface as above, called Mapper rather than Adapter - Create a JBoss default - Move JmsListenerMapper across to this mechanism - Add support for default in jbossesb-properties - Allow override of mapper from listener/provider - Add tests for supporting all this Does this sound good? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4226480#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...