[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1443) retract of Fact Template leads to NPE

[Mark Proctor (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1443?page=all ]

Mark Proctor closed JBRULES-1443.
---------------------------------

    Fix Version/s: 4.0.7
                   5.0.0-M1
       Resolution: Done
         Assignee: Mark Proctor

> retract of Fact Template leads to NPE
> -------------------------------------
>
>                 Key: JBRULES-1443
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1443
>             Project: JBoss Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>            Reporter: greywind
>         Assigned To: Mark Proctor
>             Fix For: 4.0.7, 5.0.0-M1
>
>
> If a Fact that is based on a template gets retracted the following NPE occurs
> java.lang.NullPointerException
> 	at org.drools.reteoo.Rete.retractObject(Rete.java:204)
> 	at org.drools.reteoo.ReteooRuleBase.retractObject(ReteooRuleBase.java:211)
> 	at org.drools.reteoo.ReteooWorkingMemory.doRetract(ReteooWorkingMemory.java:79)
> 	at org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:1022)
> 	at org.drools.common.TruthMaintenanceSystem$LogicalRetractCallback.execute(TruthMaintenanceSystem.java:150)
> 	at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1315)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:914)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:881)
> 	at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:81)
> 	at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:75)
> 	at org.drools.entity.Rule_Check_Dups_0.consequence(Rule_Check_Dups_0.java:12)
> 	at org.drools.entity.Rule_Check_Dups_0ConsequenceInvoker.evaluate(Rule_Check_Dups_0ConsequenceInvoker.java:22)
> 	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550)
> 	at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514)
> 	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471)
> 	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433)
> 	at org.drools.entity.EntityTest.main(EntityTest.java:307)
> Exception in thread "main" org.drools.spi.ConsequenceException: java.lang.NullPointerException
> 	at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:14)
> 	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554)
> 	at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514)
> 	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471)
> 	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433)
> 	at org.drools.entity.EntityTest.main(EntityTest.java:307)
> Caused by: java.lang.NullPointerException
> 	at org.drools.reteoo.Rete.retractObject(Rete.java:204)
> 	at org.drools.reteoo.ReteooRuleBase.retractObject(ReteooRuleBase.java:211)
> 	at org.drools.reteoo.ReteooWorkingMemory.doRetract(ReteooWorkingMemory.java:79)
> 	at org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:1022)
> 	at org.drools.common.TruthMaintenanceSystem$LogicalRetractCallback.execute(TruthMaintenanceSystem.java:150)
> 	at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1315)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:914)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:881)
> 	at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:81)
> 	at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:75)
> 	at org.drools.entity.Rule_Check_Dups_0.consequence(Rule_Check_Dups_0.java:12)
> 	at org.drools.entity.Rule_Check_Dups_0ConsequenceInvoker.evaluate(Rule_Check_Dups_0ConsequenceInvoker.java:22)
> 	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550)
> 	... 4 more

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