With the following timer definition on a state node

<state name='state1'>
<timer name='timer-to-end-with-repeat' duedate='1 second' repeat='5 seconds'>
<action class='org.jbpm.scheduler.exe.TimerDbTest$Signal' />
</timer>
<transition name='to_state2' to='state2'/>
</state>

and the action class execute() method being

public void execute(ExecutionContext executionContext) throws Exception

leads to:

2009-02-10 21:38:45,404 16508 ERROR [org.hibernate.event.def.AbstractFlushingEventListener] (JbpmJobExecutor:127.0.0.1:1 Could not synchronize database state with session
org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): org.jbpm.job.Timer#86
at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1769)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2412)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2312)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2612)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:96)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:168)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at org.jbpm.persistence.db.DbPersistenceService.commit(DbPersistenceService.java:226)
at org.jbpm.persistence.db.DbPersistenceService.endTransaction(DbPersistenceService.java:131)
at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:197)
at org.jbpm.svc.Services.close(Services.java:243)
at org.jbpm.JbpmContext.close(JbpmContext.java:133)
at org.jbpm.job.executor.JobExecutorThread.executeJob(JobExecutorThread.java:194)
at org.jbpm.job.executor.JobExecutorThread.run(JobExecutorThread.java:61)

If 'repeat' is not set, the token is leaving the state as expected.