[jboss-jira] [JBoss JIRA] (DROOLS-839) Accumulate Function ClassCastException

Eugene Shvartsman (JIRA) issues at jboss.org
Mon Jul 6 14:53:03 EDT 2015 

     [ https://issues.jboss.org/browse/DROOLS-839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eugene Shvartsman updated DROOLS-839:
-------------------------------------
    Description: 
I am getting a ClassCastException with the following LHS side of the rule. The sample I am posting is the simplest version of the rule that I could create while still retaining the error. 
{code:title=Rule.drl|borderStyle=solid}
	when
		$employee : Employee () 
		$contractLine : MinMaxContractLine( contractLineType == ContractLineType.HOURS_PER_DAY, $maxMinutesValue : maximumValue, $weight : maximumWeight, maximumEnabled == true)
		$info : EmployeeRosterInfo( $type : profileDayType, $firstDayOfWeek : firstDayOfWeek )
		$shiftDate : ShiftDate(isInPlanningWindow($info))
		
                accumulate ( $shift : ShiftAssignment( employee != null, employee == $employee)
           			,$minutesInDay  : sum($shift.getShiftDurationMinutesByProfileType($type, $shiftDate));
           			 $minutesInDay > 0
		)
	then
{code}


During the execution of the rules I get the following stack trace:



java.lang.RuntimeException: java.lang.ClassCastException: com.x.engine.domain.ShiftDate cannot be cast to com.x.engine.domain.dto.ProfileDayType

	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:90)

	at org.drools.core.phreak.PhreakAccumulateNode.addMatch(PhreakAccumulateNode.java:759)

	at org.drools.core.phreak.PhreakAccumulateNode.doLeftInserts(PhreakAccumulateNode.java:163)

	at org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:80)

	at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:569)

	at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:540)

	at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:336)

	at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:163)

	at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:118)

	at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:194)

	at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:62)

	at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:974)

	at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1283)

	at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1325)

	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1308)

	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1287)

	at com.x.engine.drools.hardconstraints.MaxHoursPerDayTester.testMaxHoursTwoShiftsViolatedStartDateType(MaxHoursPerDayTester.java:244)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:606)

	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)

	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)

	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)

	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Caused by: java.lang.ClassCastException: com.x.engine.domain.ShiftDate cannot be cast to com.x.engine.domain.dto.ProfileDayType

	at com.x.engine.solver.rules.constraints.Rule_maxHoursPerDay1799802206AccumulateExpression0Invoker.evaluate(Rule_maxHoursPerDay1799802206AccumulateExpression0Invoker.java:17)

	at org.drools.core.base.accumulators.JavaAccumulatorFunctionExecutor.accumulate(JavaAccumulatorFunctionExecutor.java:109)

	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:82)

	... 41 more



If I replace $shift.getShiftDurationMinutesByProfileType($type, $shiftDate) with $shift.getShiftDurationMinutesByProfileType($type, $shift.getShiftDate()) the issue goes away for some reason. Sadly this does not work as a workaround in my real case. 


  was:
I am getting a ClassCastException with the following LHS side of the rule. The sample I am posting is the simplest version of the rule that I could create while still retaining the error. 
{code:title=Rule.drl|borderStyle=solid}
	when

		$employee : Employee () 

		$contractLine : MinMaxContractLine( contractLineType == ContractLineType.HOURS_PER_DAY, $maxMinutesValue : maximumValue, $weight : maximumWeight, 

											maximumEnabled == true)

		$info : EmployeeRosterInfo( $type : profileDayType, $firstDayOfWeek : firstDayOfWeek )

		$shiftDate : ShiftDate(isInPlanningWindow($info))

		accumulate ( $shift : ShiftAssignment( employee != null, employee == $employee)

           			,$minutesInDay  : sum($shift.getShiftDurationMinutesByProfileType($type, $shiftDate));

           			 $minutesInDay > 0

		)

	then
{code}


During the execution of the rules I get the following stack trace:



java.lang.RuntimeException: java.lang.ClassCastException: com.x.engine.domain.ShiftDate cannot be cast to com.x.engine.domain.dto.ProfileDayType

	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:90)

	at org.drools.core.phreak.PhreakAccumulateNode.addMatch(PhreakAccumulateNode.java:759)

	at org.drools.core.phreak.PhreakAccumulateNode.doLeftInserts(PhreakAccumulateNode.java:163)

	at org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:80)

	at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:569)

	at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:540)

	at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:336)

	at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:163)

	at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:118)

	at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:194)

	at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:62)

	at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:974)

	at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1283)

	at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1325)

	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1308)

	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1287)

	at com.x.engine.drools.hardconstraints.MaxHoursPerDayTester.testMaxHoursTwoShiftsViolatedStartDateType(MaxHoursPerDayTester.java:244)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

	at java.lang.reflect.Method.invoke(Method.java:606)

	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)

	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)

	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)

	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)

	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)

	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)

	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Caused by: java.lang.ClassCastException: com.x.engine.domain.ShiftDate cannot be cast to com.x.engine.domain.dto.ProfileDayType

	at com.x.engine.solver.rules.constraints.Rule_maxHoursPerDay1799802206AccumulateExpression0Invoker.evaluate(Rule_maxHoursPerDay1799802206AccumulateExpression0Invoker.java:17)

	at org.drools.core.base.accumulators.JavaAccumulatorFunctionExecutor.accumulate(JavaAccumulatorFunctionExecutor.java:109)

	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:82)

	... 41 more



If I replace $shift.getShiftDurationMinutesByProfileType($type, $shiftDate) with $shift.getShiftDurationMinutesByProfileType($type, $shift.getShiftDate()) the issue goes away for some reason. Sadly this does not work as a workaround in my real case. 




> Accumulate Function ClassCastException
> --------------------------------------
>
>                 Key: DROOLS-839
>                 URL: https://issues.jboss.org/browse/DROOLS-839
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.2.0.CR4, 6.3.0.Beta1
>         Environment: Mac OS X 10.10.3
>            Reporter: Eugene Shvartsman
>            Assignee: Mario Fusco
>
> I am getting a ClassCastException with the following LHS side of the rule. The sample I am posting is the simplest version of the rule that I could create while still retaining the error. 
> {code:title=Rule.drl|borderStyle=solid}
> 	when
> 		$employee : Employee () 
> 		$contractLine : MinMaxContractLine( contractLineType == ContractLineType.HOURS_PER_DAY, $maxMinutesValue : maximumValue, $weight : maximumWeight, maximumEnabled == true)
> 		$info : EmployeeRosterInfo( $type : profileDayType, $firstDayOfWeek : firstDayOfWeek )
> 		$shiftDate : ShiftDate(isInPlanningWindow($info))
> 		
>                 accumulate ( $shift : ShiftAssignment( employee != null, employee == $employee)
>            			,$minutesInDay  : sum($shift.getShiftDurationMinutesByProfileType($type, $shiftDate));
>            			 $minutesInDay > 0
> 		)
> 	then
> {code}
> During the execution of the rules I get the following stack trace:
> java.lang.RuntimeException: java.lang.ClassCastException: com.x.engine.domain.ShiftDate cannot be cast to com.x.engine.domain.dto.ProfileDayType
> 	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:90)
> 	at org.drools.core.phreak.PhreakAccumulateNode.addMatch(PhreakAccumulateNode.java:759)
> 	at org.drools.core.phreak.PhreakAccumulateNode.doLeftInserts(PhreakAccumulateNode.java:163)
> 	at org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:80)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:569)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:540)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:336)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:163)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:118)
> 	at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:194)
> 	at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:62)
> 	at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:974)
> 	at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1283)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1325)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1308)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1287)
> 	at com.x.engine.drools.hardconstraints.MaxHoursPerDayTester.testMaxHoursTwoShiftsViolatedStartDateType(MaxHoursPerDayTester.java:244)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
> 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
> 	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
> Caused by: java.lang.ClassCastException: com.x.engine.domain.ShiftDate cannot be cast to com.x.engine.domain.dto.ProfileDayType
> 	at com.x.engine.solver.rules.constraints.Rule_maxHoursPerDay1799802206AccumulateExpression0Invoker.evaluate(Rule_maxHoursPerDay1799802206AccumulateExpression0Invoker.java:17)
> 	at org.drools.core.base.accumulators.JavaAccumulatorFunctionExecutor.accumulate(JavaAccumulatorFunctionExecutor.java:109)
> 	at org.drools.core.rule.SingleAccumulate.accumulate(SingleAccumulate.java:82)
> 	... 41 more
> If I replace $shift.getShiftDurationMinutesByProfileType($type, $shiftDate) with $shift.getShiftDurationMinutesByProfileType($type, $shift.getShiftDate()) the issue goes away for some reason. Sadly this does not work as a workaround in my real case. 



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