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<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal">We are getting the following exceptions when drools is executing some rules.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Exception:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in">Caused by: java.lang.NullPointerException<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.core.util.LeftTupleIndexHashTable.remove(LeftTupleIndexHashTable.java:251)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.reteoo.NotNode.retractLeftTuple(NotNode.java:226)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:217)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateRetractRightTuple(SingleLeftTupleSinkAdapter.java:124)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.reteoo.JoinNode.retractRightTuple(JoinNode.java:151)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:232)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteExpireAction.execute(ReteooWorkingMemory.java:412)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1471)<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:13.35pt;background:#EEEEEE;vertical-align:baseline">
<span style="font-size:10.5pt;font-family:Consolas;color:black;border:none windowtext 1.0pt;padding:0in"> ... 51 more</span><span style="font-size:10.5pt;font-family:Consolas;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Mallikarjun K<o:p></o:p></p>
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