I would have to be pre RC9, the MDB is doing stuff that the JCA adapter does as of the latest release. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3974080#3974080 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3974080