[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1784) Class Cast exception when using from

Class Cast exception when using from ------------------------------------ Key: JBRULES-1784 URL: https://jira.jboss.org/jira/browse/JBRULES-1784 Project: JBoss Drools Issue Type: Bug Security Level: Public(Everyone can see) Components: drools-compiler (expert), drools-core (expert) Affects Versions: 4.0.7 Environment: Windows XP Reporter: Dave Sinclair Assignee: Edson Tirelli Fix For: 5.0.0.M5 I have the following rule that should fire for each element in the set from $Chassis rule 'ChassisSlotCollectionFieldWalker' agenda-group "Traversal" no-loop true dialect "mvel" when $Chassis : Chassis () $SlotElement : Slot () from $Chassis.slots then insert($SlotElement); end But whenever I insert a Chassis into memory, I get the following expcetion Caused by: java.lang.ClassCastException: com.sungard.ams.persistence.model.objects.BladeServerSlot cannot be cast to com.sungard.ams.persistence.model .objects.BladeChassis$$EnhancerByCGLIB$$e5aeb667 at ASMAccessorImpl_248066451222360199260.getValue(Unknown Source) at org.mvel.ast.VariableDeepPropertyNode.getReducedValueAccelerated(VariableDeepPropertyNode.java:22) at org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:21) at org.mvel.MVELRuntime.execute(MVELRuntime.java:90) at org.mvel.CompiledExpression.getValue(CompiledExpression.java:111) at org.mvel.MVEL.executeExpression(MVEL.java:252) at org.drools.base.dataproviders.MVELDataProvider.getResults(MVELDataProvider.java:55) at org.drools.reteoo.FromNode.assertTuple(FromNode.java:68) at org.drools.reteoo.SingleTupleSinkAdapter.createAndPropagateAssertTuple(SingleTupleSinkAdapter.java:55) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:116) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:318) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162) at org.drools.reteoo.Rete.assertObject(Rete.java:175) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:911) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:883) at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:67) at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:61) BladeServerSlot is a subclass of Slot and is contained in a Chassis. Here is the debug from insertion [ObjectInserted: handle=[fid:1:1:ClassName:[BladeChassis], GUID:[CF0A4E63-94B2-8505-9CD2-56B4CBB52A01], Revision#:[10], Creation Date:[2008-09-24 11:2 5:59.687], ModDate:[2008-09-24 14:44:55.859], ModBy:[david.sinclair], CommonName:[blade chassis 1]]; object=ClassName:[BladeChassis], GUID:[CF0A4E63-9 4B2-8505-9CD2-56B4CBB52A01], Revision#:[10], Creation Date:[2008-09-24 11:25:59.687], ModDate:[2008-09-24 14:44:55.859], ModBy:[david.sinclair], Commo nName:[blade chassis 1]] and before activation fired [BeforeActivationFired(0): rule=ChassisSlotCollectionFieldWalker; tuple=[fid:3:3:ClassName:[BladeServerSlot], GUID:[AE26671E-BF95-B58A-A6AB-DA13BEED6B D5], Revision#:[0], Creation Date:[2008-09-24 16:10:11.062], ModDate:[2008-09-24 16:10:11.062], ModBy:[david.sinclair], CommonName:[blade server slot 2]] [fid:1:1:ClassName:[BladeChassis], GUID:[CF0A4E63-94B2-8505-9CD2-56B4CBB52A01], Revision#:[10], Creation Date:[2008-09-24 11:25:59.687], ModDate:[2008 -09-24 14:44:55.859], ModBy:[david.sinclair], CommonName:[blade chassis 1]] ]