Did the tutorial work for you? I created a service as described in the tutorial, but it is throwing an exception when I shutdown jboss. Then I deployed the tutorial applicatoin from the src url specified in the previous post, and it fails again at jboss shutdown. Here are the exceptions on the jboss console: 2007-08-31 14:17:55,870 WARN [ServiceDelegateWrapper] Stopping failed jboss.j2ee:jar=tutorial.jar,name=ServiceThree,ser vice=EJB3 java.lang.RuntimeException: javax.management.InstanceNotFoundException: jboss.j2ee:jar=tutorial.jar,name=ServiceThree,se rvice=EJB3,type=ManagementInterface is not registered. .... stack trace .... 2007-08-31 14:17:56,308 WARN [ServiceController] Ignoring request to stop nonexistent service: jboss.j2ee:jar=tutorial. jar,name=ServiceThree,service=EJB3,type=ManagementInterface ServiceTwo - Stopping 2007-08-31 14:17:56,308 WARN [ServiceDelegateWrapper] Stopping failed jboss.j2ee:jar=tutorial.jar,name=ServiceTwo,servi ce=EJB3 java.lang.RuntimeException: javax.management.InstanceNotFoundException: tutorial:service=serviceTwo is not registered. ... stack trace ... followed by same message for ServiceOne. Is this a known issue? Thanks Sergiu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4080125#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...