Your big problem is that it can't find the timers from the database. 14:29:08,137 ERROR [SchedulerSession] org.hibernate.MappingException: Named query not known: SchedulerSession.findTimersByDueDate | 14:29:08,137 INFO [SchedulerThread] runtime exception while executing timers | org.jbpm.JbpmException: couldn't find timers from the database | at org.jbpm.db.SchedulerSession.findTimersByDueDate(SchedulerSession.java:88) | at org.jbpm.scheduler.impl.SchedulerThread.executeTimers(SchedulerThread.java:106) | at org.jbpm.scheduler.impl.SchedulerThread.run(SchedulerThread.java:70) | Caused by: org.hibernate.MappingException: Named query not known: SchedulerSession.findTimersByDueDate | at org.hibernate.impl.AbstractSessionImpl.getNamedQuery(AbstractSessionImpl.java:70) | at org.hibernate.impl.SessionImpl.getNamedQuery(SessionImpl.java:1260) | at org.jbpm.db.SchedulerSession.findTimersByDueDate(SchedulerSession.java:82) | ... 2 more Do you have all of the jBPM hbm.xml mappings in your project? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997545#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...