[jboss-jira] [JBoss JIRA] (DROOLS-421) EvaluatorWrapper uses the wrong fact/handle/extractor combination when invoking Evaluators

[Davide Sottara (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Davide Sottara updated DROOLS-421:
----------------------------------

    Description: 
Multiple problems are detected.
1) The EvaluatorWrapper tries to look up the right handle from the WM, but there may be cases (e.g. when the right input comes from a FROM node)
where the handle is not in the WM, causing a NPE
2) For the same reason, the left handle may be 

  was:See ML forum for details and test case. Will update this description later


    
> EvaluatorWrapper uses the wrong fact/handle/extractor combination when invoking Evaluators
> ------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-421
>                 URL: https://issues.jboss.org/browse/DROOLS-421
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.5.1.Final, 6.0.0.Final, 6.0.1.Final, 6.1.0.Beta1
>            Reporter: Davide Sottara
>            Assignee: Mario Fusco
>            Priority: Critical
>
> Multiple problems are detected.
> 1) The EvaluatorWrapper tries to look up the right handle from the WM, but there may be cases (e.g. when the right input comes from a FROM node)
> where the handle is not in the WM, causing a NPE
> 2) For the same reason, the left handle may be 

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