I thought that it is that way, but probably i was wrong. lifecycle method is called once, but TimerService.createTimer() method starts 2 timers in RC9. Anyone can help me solve this? Exception: 5:56:35,126 WARN [ServiceDelegateWrapper] Stopping failed jboss.j2ee:jar=myTimerService-plugin.jar,name=MyTimerLoaderBean,service=EJB3 java.lang.RuntimeException: javax.management.InstanceNotFoundException: deplplugin:service=myLoader is not registered...... still happens when undeploying is done. Anyone can help me solve this too? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981991#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...