Hello, I have about 10 ServiceMBeans. They are running fine after a period (6-8h) but somehow suddenly JBoss is destroying them and trys to start them again. I'm using in some ServiceMBeans the java.util.TimerTask instead of the TimerService and they are running fine, but only those ServiceMbeans which are using a TimerService (@Resource private TimerService ts;) were destroyed. The starting failed because an NullPointerException occure in the startService() methods where i'm creating a timer, but the TimerService is null. Anyone have an idea why that happen? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4265165#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...