[rules-users] ClassCastException during inserting knowledge package

[Piotr Jedrychowski]

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
> https://lists.jboss.org/mailman/listinfo/rules-users
>    

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