Error when trying to create a Timer in EJB <p>I'm having a problem with a timer in <strong>EJB</strong>.I don't have experience whit this type application, so I don't know What to do for resolve this problem.</p> <p>timer cod:</p> <pre><code> @Schedule(minute="*/2", second="0", dayOfMonth="*", month="*", year="*", hour="6-23", dayOfWeek="*", persistent = false) public void cargaC() { ....} @Schedule(minute="10", second="0", dayOfMonth="*", month="*", year="*", hour="1", dayOfWeek="*", persistent = false) public void limpaTabelaC(){ ....} </code></pre> <p>error: </p> <pre><code> 18:56:10,103 INFO [org.jboss.as.ejb3] (EJB default - 4) JBAS014121: Timer: [id=c7a5c2c9-2b6c-49d8-956a-f831ebab53c3 timedObjectId=PrjX_V2.PrjX_V2.CargaDados auto-timer?:true persistent?:false timerService=org.jboss.as.ejb3.timerservice.TimerServiceImpl@35d07654 initialExpiration=Wed May 11 06:00:00 BRT 2016 intervalDuration(in milli sec)=0 nextExpiration=Wed May 11 18:58:00 BRT 2016 timerState=IN_TIMEOUT will be retried 18:56:10,103 INFO [org.jboss.as.ejb3] (EJB default - 4) JBAS014123: Retrying timeout for timer: [id=c7a5c2c9-2b6c-49d8-956a-f831ebab53c3 timedObjectId=PrjX_V2.PrjX_V2.CargaDados auto-timer?:true persistent?:false timerService=org.jboss.as.ejb3.timerservice.TimerServiceImpl@35d07654 initialExpiration=Wed May 11 06:00:00 BRT 2016 intervalDuration(in milli sec)=0 nextExpiration=Wed May 11 18:58:00 BRT 2016 timerState=IN_TIMEOUT 18:56:14,813 ERROR [org.jboss.as.ejb3] (EJB default - 4) JBAS014122: Error during retrying timeout for timer: [id=c7a5c2c9-2b6c-49d8-956a-f831ebab53c3 timedObjectId=PrjX_V2.PrjX_V2.CargaDados auto-timer?:true persistent?:false timerService=org.jboss.as.ejb3.timerservice.TimerServiceImpl@35d07654 initialExpiration=Wed May 11 06:00:00 BRT 2016 intervalDuration(in milli sec)=0 nextExpiration=Wed May 11 18:58:00 BRT 2016 timerState=RETRY_TIMEOUT: javax.ejb.EJBException: Unexpected Error </code></pre> <p>someone can help me?</p>