[jboss-jira] [JBoss JIRA] (DROOLS-707) NullPointer when changing order of the rules

[Francesco Peloi (JIRA)]

Francesco Peloi created DROOLS-707:
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             Summary: NullPointer when changing order of the rules
                 Key: DROOLS-707
                 URL: https://issues.jboss.org/browse/DROOLS-707
             Project: Drools
          Issue Type: Bug
    Affects Versions: 6.2.0.CR4, 6.1.0.Final, 6.0.0.Final
            Reporter: Francesco Peloi
            Assignee: Mark Proctor


Hi there,

   we are having some serious issues with some rules, they are throwing a NullPointerException and we don't understand why. I have tried to narrow down the problem to the smallest rule possible, now this rule doesn't really make much sense put like this but the real rule is more complex with more constraints. At the end the result is the same: a NPE.

I tested this in isolation with the minimum amount of code possible, and attached it as well if someone wants to try it quickly.

Note that if line 2 of the when:
$a : Integer()
is moved as first line, the rule runs ok.

Please find the reproducer here: https://groups.google.com/forum/#!topic/drools-usage/-oNqu3l4cqE



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