Potential NPE when using database backed timers

    at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:57)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.NullPointerException
    at org.jboss.as.ejb3.timerservice.TimerServiceImpl.getActivePersistentTimers(TimerServiceImpl.java:961)
    at org.jboss.as.ejb3.timerservice.TimerServiceImpl.restoreTimers(TimerServiceImpl.java:699)
    at org.jboss.as.ejb3.timerservice.TimerServiceImpl.activate(TimerServiceImpl.java:226)
    at org.jboss.as.ejb3.component.EJBComponent.start(EJBComponent.java:543)
    at org.jboss.as.ejb3.component.stateless.StatelessSessionComponent.start(StatelessSessionComponent.java:114)
    at org.jboss.as.ee.component.ComponentStartService$1.run(ComponentStartService.java:54)
    ... 6 more