[rules-users] Getting java.lang.ClassCastException: - using Drools 5.3

[kashif10]

HI.
I am getting following exception.

Exception in thread "main" org.drools.RuntimeDroolsException:
d1.rule.Rule_8f09c0aa350100000080cb1e0dd40f6fEval4Invoker at f6f66af4 :*
java.lang.ClassCastException: d1.rule.facts.Medication cannot be cast to
d1.rule.facts.Procedure*
	at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:119)
	at
org.drools.reteoo.EvalConditionNode.assertLeftTuple(EvalConditionNode.java:178)
	at
org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:197)
	at
org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:72)
	at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:161)
	at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458)
	at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386)
	at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:134)
	at
org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
	at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215)
	at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330)
	at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291)
	at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886)
	at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845)
	at
org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255)
	at d1.rule.facts.PatientFacts.loadFactsInSession(PatientFacts.java:6075)
	at d1.rule.DREvaluator.startEvaluation(DREvaluator.java:278)
	at d1.rule.DREvaluator.main(DREvaluator.java:72)
Caused by: java.lang.ClassCastException: d1.rule.facts.Medication cannot be
cast to d1.rule.facts.Procedure
	at
d1.rule.Rule_8f09c0aa350100000080cb1e0dd40f6fEval4Invoker.evaluate(Unknown
Source)
	at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:114)



Following is the rule. I found that due to "or" the Procedure block not
runs. 
If I change "or" to "and" than procedure block executed & the error not
produced.
I am not sure what's the problem, I am using Drool 5.3

  rule "8f09c0aa350100000080cb1e0dd40f6f"     
    
    when    #conditions   
    
    (   
    
		$cepFacts: CEPFacts(id=="D1")    
		and    
		eval($cepFacts.initialize())
		
		and     
    
	    (
	         (   
	    	     $DxDate_1 : ( Medication( name equalsIgnoreCase "Ofloxacin" )  )
	    	     and
	    	     eval($cepFacts.checkRelativeValues($DxDate_1) )   
	    	)
	    	or
	    	(   
	    	   
	    	    $DxDate_2 : ( Procedure( name equalsIgnoreCase "Pres antibiotic" ) 
)
	    	    and 
	    	    eval($cepFacts.checkRelativeValues($DxDate_2) )   
	    	)
	    )
	    and
	    ( 
	    	   
	    	$DxDate_3 : ( Medication( name equalsIgnoreCase "Trazodone" ) )
	    	and
	    	eval($cepFacts.checkTimeIs($DxDate_3)
	    		
	    )
    
    )
    then 
    	
    	resultIds.add("8f09c0aa350100000080cb1e0dd40f6f");
    	
      end     

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