AS 4.2.1 appears to not use TimerServiceImpl anymore, but org.jboss.ejb3.timerservice.jboss.TimerServiceFacade instead, which doesn't offer any setters for the persistencePolicy. Chapter 10.8 from the Guide also doesn't mention the persistencePolicy. Is it possible to configure the MBean org.jboss.ejb.txtimer.EJBTimerServiceImpl programmatically in the application? Or is it only possible via jboss-service.xml ? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4094468#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...