[jboss-jira] [JBoss JIRA] Resolved: (JBRULES-1073) CompositeContextEntry is raising NPE

[Edson Tirelli (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-1073?page=all ]

Edson Tirelli resolved JBRULES-1073.
------------------------------------

    Resolution: Done

Problem was a mistake in the constructor where an incorrect variable declaration was shadowing the instance attribute:

    public static class CompositeContextEntry
        implements
        ContextEntry {
        public ContextEntry[] contextEntries;

        private ContextEntry  entry;

        public CompositeContextEntry(final Restriction[] restrictions) {
            final ContextEntry[] contextEntries = new ContextEntry[restrictions.length];
            for ( int i = 0; i < restrictions.length; i++ ) {
                contextEntries[i] = restrictions[i].getContextEntry();
            }
        }

Fixed.

> CompositeContextEntry is raising NPE
> ------------------------------------
>
>                 Key: JBRULES-1073
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1073
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Reteoo
>    Affects Versions:  4.0.0.GA
>            Reporter: Edson Tirelli
>         Assigned To: Edson Tirelli
>             Fix For: 4.0.1
>
>
> Stack Trace:
> Exception in thread "main" java.lang.NullPointerException
> 	at org.drools.rule.AbstractCompositeRestriction$CompositeContextEntry.updateFromFactHandle(AbstractCompositeRestriction.java:104)
> 	at org.drools.common.DoubleBetaConstraints.updateFromFactHandle(DoubleBetaConstraints.java:138)
> 	at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:158)
> 	at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20)
> 	at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:130)
> 	at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:308)
> 	at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:168)
> 	at org.drools.reteoo.Rete.assertObject(Rete.java:168)
> 	at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:190)
> 	at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:70)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:850)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:824)
> 	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:625)
> 	at org.drools.examples.GolfingExample.main(GolfingExample.java:32)

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