Thanks! However I found another solution. It isn't really related to JBoss since I'm using Spring to manage these beans, but here goes: I added the following line to the "MBeanExporter" in applicationContext.xml which forces unregistration of any existing beans with the same name. (this setting probably does the same as the code you posted does) | <property name="registrationBehaviorName" value="REGISTRATION_REPLACE_EXISTING"/> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3966413#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...