[jboss-jira] [JBoss JIRA] (DROOLS-106) Using the same pattern in and out of a sliding windows causes an NPE if a join is involved

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco reassigned DROOLS-106:
----------------------------------

    Assignee: Mario Fusco  (was: Edson Tirelli)

    
> Using the same pattern in and out of a sliding windows causes an NPE if a join is involved
> ------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-106
>                 URL: https://issues.jboss.org/browse/DROOLS-106
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.5.0.Final, 6.0.0.Beta1
>            Reporter: Davide Sottara
>            Assignee: Mario Fusco
>
> In cases like the following:
> $primary : StockTick( $name : company ) over window:length(4)
> accumulate (
>    $tick : StockTick( company == $name )
>    count( $tick ) )
> A NPE is raised: 
> java.lang.NullPointerException
> 	at org.drools.core.util.index.RightTupleIndexHashTable.remove(RightTupleIndexHashTable.java:363)
> 	at org.drools.reteoo.AccumulateNode.retractRightTuple(AccumulateNode.java:318)
> 	at org.drools.rule.SlidingLengthWindow.assertFact(SlidingLengthWindow.java:116)

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