[jboss-jira] [JBoss JIRA] Commented: (JBRULES-2201) Rule got executed even does not satisfy LHS after firing an external event in Flow

[Kit Chan (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBRULES-2201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12478510#action_12478510 ] 

Kit Chan commented on JBRULES-2201:
-----------------------------------

I don't have a standalone sample right now, but what I figured out is when a RuleFlowGroup node triggers an external event (from a rule in a drl file), and that event will lead to an End node that ends the main process. Then with the next run of the process (by inserting another fact), what happened is the RuleFlowGroup node that triggered the external event in the last run is trying to execute again with the previous object, which the object is removed from the working memory already, so it ends up with a Null Pointer Exception. I called the dispose method at the end of every run, but seems like it doesn't dispose everything the way it supposed to.

> Rule got executed even does not satisfy LHS after firing an external event in Flow
> ----------------------------------------------------------------------------------
>
>                 Key: JBRULES-2201
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2201
>             Project: JBoss Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core  (expert), drools-core (flow)
>    Affects Versions: 5.0.1.FINAL
>         Environment: Windows XP SP3, Eclipse 3.4.2
>            Reporter: Kit Chan
>            Assignee: Kris Verlaenen
>            Priority: Critical
>
> I am using Flow to create the workflow of the process and the rules are defined in a DRL file.  I have a rule that will trigger an external event defined in the Flow.  So the scenario is I will insert one fact in the Knowledge Session and start the process, once the process is finished, it will insert anoother fact and start another process, keep repeating this procedures for numbers of time.  The problem is once an external event got triggered once, it will cause the rule that trigger the external event everytime even the condition that specified in the LHS of the rule doesn't match.  And the fact is NULL in those cases, I checked the activation plan, the rule is not activated but still got executed somehow.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira