Aug 21, 2015 1:23:23 PM SCHWERWIEGEND hudson.triggers.SafeTimerTask run

Timer task hudson.model.Queue$MaintainTask@47ec5080 failed
java.lang.ClassCastException: hudson.plugins.batch_task.BatchTask cannot be cast to hudson.model.AbstractProject
	at hudson.plugins.buildblocker.BuildBlockerQueueTaskDispatcher.getBuildBlockerProperty(BuildBlockerQueueTaskDispatcher.java:199)
	at hudson.plugins.buildblocker.BuildBlockerQueueTaskDispatcher.canTake(BuildBlockerQueueTaskDispatcher.java:108)
	at hudson.model.Queue$JobOffer.canTake(Queue.java:300)
	at hudson.model.Queue.maintain(Queue.java:1476)
	at hudson.model.Queue$MaintainTask.doRun(Queue.java:2576)
	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:51)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
	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)