Re: [rules-users] Facing Problem with this exception
Could be a bug that has been fixed. No telling without knowing which
version this does. - If it isn't the latest of Drools 5, try 5.6.
-W
On 05/03/2014, Mallikarjun Kohalli (mkohalli) <mkohalli(a)cisco.com> wrote:
Hi All,
We are getting the following exceptions when drools is executing some
rules.
Exception:
Caused by: java.lang.NullPointerException
at
org.drools.core.util.LeftTupleIndexHashTable.remove(LeftTupleIndexHashTable.java:251)
at org.drools.reteoo.NotNode.retractLeftTuple(NotNode.java:226)
at
org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:217)
at
org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateRetractRightTuple(SingleLeftTupleSinkAdapter.java:124)
at org.drools.reteoo.JoinNode.retractRightTuple(JoinNode.java:151)
at
org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:232)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteExpireAction.execute(ReteooWorkingMemory.java:412)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)
... 51 more
Regards,
Mallikarjun K