They're packaged by an ant build script into a JAR which in turn resides in an EAR. The application.xml of that EAR has an entry for the JAR that contains the beans. The Management bean is in the same JAR as the Session beans that are being deployed ( I've checked that they are actually in the JAR by exploding it and inspecting). Great news about JBoss5 CR1. I will download and install immediately! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4161711#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...