[jboss-jira] [JBoss JIRA] (JBRULES-3269) Drools NPE on SlidingTimeWindowComparator

[Diego Naya (Created) (JIRA)]

Drools NPE on SlidingTimeWindowComparator
-----------------------------------------

                 Key: JBRULES-3269
                 URL: https://issues.jboss.org/browse/JBRULES-3269
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 5.3.0.Final
            Reporter: Diego Naya
            Assignee: Mark Proctor



Exception in thread "Thread-0" org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction at 1737712
	at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:973)
	at org.drools.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1231)
	at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:753)
	at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:729)
	at org.drools.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(StatefulKnowledgeSessionImpl.java:234)
	at com.sample.DroolsTest$1.run(DroolsTest.java:35)
Caused by: java.lang.NullPointerException
	at org.drools.rule.SlidingTimeWindow$SlidingTimeWindowComparator.compare(SlidingTimeWindow.java:232)
	at org.drools.rule.SlidingTimeWindow$SlidingTimeWindowComparator.compare(SlidingTimeWindow.java:227)
	at java.util.PriorityQueue.siftDownUsingComparator(PriorityQueue.java:661)
	at java.util.PriorityQueue.siftDown(PriorityQueue.java:629)
	at java.util.PriorityQueue.poll(PriorityQueue.java:540)
	at java.util.AbstractQueue.remove(AbstractQueue.java:114)
	at org.drools.rule.SlidingTimeWindow.expireTuples(SlidingTimeWindow.java:164)
	at org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction.execute(SlidingTimeWindow.java:431)
	at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:971)
	... 5 more

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