jboss-app.xml is just for use on JBoss AS. We use it to tell AS to isolate classloading for this ear. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4039636#4039636 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4039636