[rules-users] ClassCastException during inserting knowledge package

Piotr Jedrychowski pjedrychowski at proximetry.pl
Tue May 25 02:51:47 EDT 2010 

I tried to create an isolated test case to reproduce this problem but I 
can't reproduce it each time. So in my opinion this is random issue. I 
will try to change my test case to reproduce this issue each time.

Maybe someone else had similar problem and maybe there is workaround for 
this issue?

Piotr






On 2010-04-26 13:42, Piotr Jedrychowski wrote:
> I can't prepare it right now because I have a lot of other work. When 
> I will have little bit time I will prepare test case for you.
>
> Piotr
>
>
>
>
>
> On 2010-04-22 19:13, Edson Tirelli wrote:
>>
>>     Can you provide an isolated test case to reproduce this problem? 
>> If so, please create a JIRA, attach your case and ping me plz.
>>
>>     Edson
>>
>> 2010/4/22 Piotr Jedrychowski <pjedrychowski at proximetry.pl 
>> <mailto:pjedrychowski at proximetry.pl>>
>>
>>     I've downloaded last stable build (number 3845, made 2010-04-14)
>>     from Drools Hudson (http://hudson.jboss.org/hudson/job/drools/).
>>     After running my tests I got same problem (but little different
>>     StackTrace):
>>
>>     java.lang.ClassCastException: org.drools.core.util.ObjectHashMap
>>         at org.drools.reteoo.AlphaNode.updateSink(AlphaNode.java:172)
>>         at org.drools.reteoo.BetaNode.attach(BetaNode.java:214)
>>
>>         at
>>     org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:160)
>>         at
>>     org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build(GroupElementBuilder.java:281)
>>         at
>>     org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:77)
>>         at
>>     org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:130)
>>         at
>>     org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:77)
>>         at
>>     org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:155)
>>         at
>>     org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:128)
>>
>>
>>         at
>>     org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
>>         at
>>     org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:409)
>>         at
>>     org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:638)
>>         at
>>     org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:520)
>>         at
>>     org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:426)
>>
>>
>>         at
>>     org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:121)
>>
>>
>>     Maybe I should download Drools from other place?
>>
>>     Piotr
>>
>>
>>
>>
>>
>>     On 2010-04-21 19:37, Edson Tirelli wrote:
>>>
>>>        This is related to the problem in your other e-mail and it is
>>>     fixed in trunk.
>>>
>>>        Edson
>>>
>>>     2010/4/21 Piotr Jedrychowski <pjedrychowski at proximetry.pl
>>>     <mailto:pjedrychowski at proximetry.pl>>
>>>
>>>         Hello.
>>>
>>>         I have a problem with such scenario:
>>>
>>>         1) add one knowledge package (sensor200) with two rules:
>>>
>>>         package sensor200
>>>         rule "Sensor-200-ON"
>>>         when
>>>         (and f0: FMSensorFact(id==201) f1: FMSensorFact(id==202) )
>>>         (not FMFact(id==200))
>>>         then
>>>         FMFact factToInsert = new FMFact(200);
>>>         insert(factToInsert);
>>>         end
>>>
>>>         package sensor200
>>>         rule "Sensor-200-OFF"
>>>         when
>>>         not (and FMSensorFact(id==201) FMSensorFact(id==202) )
>>>         (factToRetract : FMFact(id==200))
>>>         then
>>>         retract(factToRetract);
>>>         end
>>>
>>>         2) remove knowledge package (sensor200)
>>>
>>>         3) add knowledge package with the same name as in point 1,
>>>         but with
>>>         other rule:
>>>
>>>         package sensor200
>>>         rule "Sensor-200-OR-201-ON"
>>>         when
>>>         fact: FMSensorFact(id==201)
>>>         (not FMFact(id==200))
>>>         then
>>>         FMFact factToInsert = new FMFact(200);
>>>         insert(factToInsert);
>>>         end
>>>
>>>         During adding knowledge package in point 3, I'm getting
>>>         ClassCastException with this Stacktarce:
>>>
>>>         java.lang.ClassCastException: org.drools.util.ObjectHashMap
>>>          at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:142)
>>>          at
>>>         org.drools.reteoo.ObjectTypeNode.updateSink(ObjectTypeNode.java:252)
>>>          at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:133)
>>>          at
>>>         org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:160)
>>>          at
>>>         org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes(PatternBuilder.java:295)
>>>          at
>>>         org.drools.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:117)
>>>          at
>>>         org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java:70)
>>>          at
>>>         org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build(GroupElementBuilder.java:228)
>>>          at
>>>         org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
>>>          at
>>>         org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:126)
>>>          at
>>>         org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
>>>          at
>>>         org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:153)
>>>          at
>>>         org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:126)
>>>          at
>>>         org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
>>>          at
>>>         org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
>>>          at
>>>         org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
>>>          at
>>>         org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:500)
>>>          at
>>>         org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:379)
>>>          at
>>>         org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:121)
>>>
>>>         Maybe someone had similar problem and could help me?
>>>
>>>         I'm using:
>>>         * JBoss 4.2.3.GA <http://4.2.3.GA>
>>>         * Drools 5.0
>>>
>>>         Regards,
>>>         Piotr
>>>         _______________________________________________
>>>         rules-users mailing list
>>>         rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>>>         https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>>
>>>
>>>     -- 
>>>      Edson Tirelli
>>>      JBoss Drools Core Development
>>>      JBoss by Red Hat @ www.jboss.com <http://www.jboss.com>
>>>
>>>
>>>     _______________________________________________
>>>     rules-users mailing list
>>>     rules-users at lists.jboss.org  <mailto:rules-users at lists.jboss.org>
>>>     https://lists.jboss.org/mailman/listinfo/rules-users
>>>        
>>
>>
>>     _______________________________________________
>>     rules-users mailing list
>>     rules-users at lists.jboss.org <mailto:rules-users at lists.jboss.org>
>>     https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>>
>>
>> -- 
>>  Edson Tirelli
>>  JBoss Drools Core Development
>>  JBoss by Red Hat @ www.jboss.com <http://www.jboss.com>
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>    
>

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