[jboss-jira] [JBoss JIRA] Commented: (JBRULES-2796) NullPointerException in FromNode.destroyCreatedHandles

NullPointerException in FromNode.destroyCreatedHandles ------------------------------------------------------ Key: JBRULES-2796 URL: https://issues.jboss.org/browse/JBRULES-2796 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Components: drools-core Reporter: Tommy Odom Assignee: Mark Proctor I received this NullPointerException after upgrading to drools 5.1.1. The NullPointerException is being thrown when the rule executes "update($build);" where $build is set in the LHS from a Build in working memory. I'm not sure if the bug is that matches may be null and a null check needs to be added or if something else is going on causing the tuple to not be found. Caused by: java.lang.NullPointerException at org.drools.reteoo.FromNode.destroyCreatedHandles(FromNode.java:336) at org.drools.reteoo.FromNode.retractLeftTuple(FromNode.java:326) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractRightTuple(CompositeLeftTupleSinkAdapter.java:155) at org.drools.reteoo.JoinNode.retractRightTuple(JoinNode.java:151) at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:126) at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176) at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1442) at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1349) at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183) at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196) at buildSchedulerV2.Rule_Combine_Builds_0.defaultConsequence(Rule_Combine_Builds_0.java:36) at buildSchedulerV2.Rule_Combine_Builds_0DefaultConsequenceInvoker.evaluate(Rule_Combine_Builds_0DefaultConsequenceInvoker.java:49) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:917)