[jboss-jira] [JBoss JIRA] (DROOLS-78) NullPointerException in Length Window

[Radai Rosenblatt (JIRA)]

Radai Rosenblatt created DROOLS-78:
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             Summary: NullPointerException in Length Window
                 Key: DROOLS-78
                 URL: https://issues.jboss.org/browse/DROOLS-78
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 5.5
            Reporter: Radai Rosenblatt
            Assignee: Mark Proctor


when writing a (fusion) rule with a length window and inserting more events than the window size drools produces a null pointer exception on the 1st event over the window size.

the exception produced is:

java.lang.NullPointerException
	at org.drools.core.util.index.RightTupleIndexHashTable.remove(RightTupleIndexHashTable.java:363)
	at org.drools.reteoo.AccumulateNode.retractRightTuple(AccumulateNode.java:318)
	at org.drools.rule.SlidingLengthWindow.assertFact(SlidingLengthWindow.java:116)
	at org.drools.rule.BehaviorManager.assertFact(BehaviorManager.java:94)
	at org.drools.reteoo.WindowNode.assertObject(WindowNode.java:167)
	at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
	at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
	at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
	at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:127)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:55)

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