Hmm yes, that would work. All i'm trying to avoid is duplicating the java code. Duplicating a bit of xml bothers me a lot less. From the sounds of things it would be feasible to declare a bean with class=org.jboss.system.microcontainer.jmx.ServiceControllerLifecycleCallback in the jboss-service.xml file and inject the legacy JMX kernel into it, then reference that in the TransactionManager bean xml? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4116530#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...