[jboss-jira] [JBoss JIRA] Updated: (JBRULES-847) Continously updating facts and firing rules leads to OutOfMemoryException

[Mark Proctor (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBRULES-847?page=all ]

Mark Proctor updated JBRULES-847:
---------------------------------

    Fix Version/s:  4.0.0.MR4

assigning fixfor 4.0 so I don't forget to evaluate.

> Continously updating facts and firing rules leads to OutOfMemoryException
> -------------------------------------------------------------------------
>
>                 Key: JBRULES-847
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-847
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Reteoo
>    Affects Versions: 3.0.5
>         Environment: Linux, Eclipse 3.2, JDK 1.6, JBoss Rules from Maven rep
>            Reporter: Lars Ivar Igesund
>         Assigned To: Edson Tirelli
>             Fix For:  4.0.0.MR4
>
>
> The rules at the end are checked against two facts of type TextileUser. The facts are true for the first rule  when asserted. The action modfies the facts to make them true for the other rule, which again make the facts true for the first rule, creating an infinite loop.
> On my setup, this leads to an OutOfMemoryException after about 40 seconds. Increasing the number of facts to 100 didn't change this.
> --------------------
> rule "User needs textiles"
>  
>         when
>                 #conditions
>                 tu: TextileUser(wantTextile==true)
>         then 
>                 #actions
>                 tu.collectTextiles();
>                 modify( tu );
>  
> end
>  
> rule "User has dirty textiles"
>         #include attributes such as "salience" here...
>         when
>                 #conditions
>                 tu: TextileUser(hasDirtyTextiles == true);
>         then 
>                 #actions
>                 tu.returnTextiles();
>                 modify ( tu );
> end

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