Re: [rules-users] ClassCastException during inserting knowledge package

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 * Drools 5.0 Regards, Piotr _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users