[jboss-jira] [JBoss JIRA] Closed: (JBRULES-2771) NPE in update call from wrong WM Entry Point

[Mark Proctor (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-2771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Proctor closed JBRULES-2771.
---------------------------------



> NPE in update call from wrong WM Entry Point
> --------------------------------------------
>
>                 Key: JBRULES-2771
>                 URL: https://issues.jboss.org/browse/JBRULES-2771
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.1.1.FINAL
>            Reporter: Wolfgang Laun
>            Assignee: Mark Proctor
>             Fix For: 5.2.0.M2
>
>
> This sequence of statements disagrees with the documentation:
>     WorkingMemoryEntryPoint entryPoint = kSession.getWorkingMemoryEntryPoint( "epn" );
>     FactHandle fh = entryPoint.insert( fact );
>     kSession.update( fh, fact );   // should be done using entryPoint.update
> But this causes (in 5.1.1) a NPE
> Exception in thread "main" java.lang.NullPointerException
>     at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1379)
>     at org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1338)
>     at org.drools.impl.StatefulKnowledgeSessionImpl.update(StatefulKnowledgeSessionImpl.java:266)
>     at event.Main.execute(Main.java:153)
>     at event.Main.main(Main.java:164)
> This is the line:
>    if ( this.maintainTms ) {
>                 status = ((InternalFactHandle) factHandle).getEqualityKey().getStatus();
>   }
> and similar code can be found in trunk, so I suppose this is still possible.

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