[jboss-jira] [JBoss JIRA] Created: (JBRULES-612) NPE on asserting facts before reading rules with retract

[Justine Hlista (JIRA)]

NPE on asserting facts before reading rules with retract
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                 Key: JBRULES-612
                 URL: http://jira.jboss.com/jira/browse/JBRULES-612
             Project: JBoss Rules
          Issue Type: Bug
      Security Level: Public (Everyone can see)
    Affects Versions: 3.0.5
         Environment: Windows XP, JDK 1.5.0_07
            Reporter: Justine Hlista
         Assigned To: Mark Proctor


I have a scenario that asserts two simple facts, then reads a rule file, then fires the rules. One of the rules retracts one of the facts, then modifies another object. An NPE results when things are run as in the attached files.

However, if the rule file is read first, then the facts are asserted, there is no NPE.

Alternatively, if the second rule, the consequence of which retracts one of the facts, is modified so that the retract is the last statement in the consequence, then the NPE does not occur, even if the facts are asserted before the rules are read.

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