The JBoss version number is kept in the VersionNumber attribute of the jboss.system:type=Server MBean. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4129296#4129296 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4129296