I mentioned the phenomenon above, because the left timers in the section persistencePolicy=database,service=EJBTimerService cause in myh application the following problem. If i have old timers after undeployment of my service and then redeploy it again, the timeout method is invoked equal times the number of timers, which are cancel due to prior undeployments. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4008797#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...