[jboss-jira] [JBoss JIRA] (DROOLS-839) Accumulate Function ClassCastException
Eugene Shvartsman (JIRA)
issues at jboss.org
Tue Jul 14 09:03:05 EDT 2015
[ https://issues.jboss.org/browse/DROOLS-839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13089257#comment-13089257 ]
Eugene Shvartsman commented on DROOLS-839:
------------------------------------------
Thanks Mario, is there any way this can be backported to 6.2.0.CR4?
> 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
> Fix For: 6.3.0.CR1
>
> Attachments: Drools-839-Reproducer.zip
>
>
> 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}
> rule "reproducer"
> dialect "mvel"
> enabled true
> when
> $contract : Contract( $contractRefId : contractRefId, $scope : scope )
> (or
> $employee : Employee ($scope == ContractScope.EmployeeContract && employeeId == $contractRefId)
> $employee : Employee ($scope == ContractScope.TeamContract)
> )
> $contractLine : MinMaxContractLine( contractLineType == ContractLineType.HOURS_PER_DAY, $maxMinutesValue : maximumValue, $weight : maximumWeight,
> maximumEnabled == true, $contract == contract)
> $info : EmployeeRosterInfo( $type : profileDayType, $firstDayOfWeek : firstDayOfWeek )
> $shiftDate : ShiftDate(isInPlanningWindow($info))
> accumulate ( $shift : ShiftAssignment( employee != null, employee == $employee
> ,getDateByProfileDayType($type).equals($shiftDate)
> ,$minutes : shiftDurationMinutes)
> ,$minutesInDay : sum( $shift.getShiftDurationMinutesByProfileType($type, $shiftDate) )
> ,$shiftsInvolved : collectList($shift)
> )
> then
> end
> {code}
> During the execution of the rules I get the following stack trace:
> {code:title=StackTrace.java|borderStyle=solid}
> java.lang.RuntimeException: java.lang.ClassCastException: com.reproducer.engine.domain.contract.Contract cannot be cast to com.reproducer.engine.domain.EmployeeRosterInfo
> at org.drools.core.rule.MultiAccumulate.accumulate(MultiAccumulate.java:99)
> at org.drools.core.phreak.PhreakAccumulateNode.addMatch(PhreakAccumulateNode.java:751)
> 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:562)
> at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:533)
> at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:334)
> at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:161)
> at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:116)
> at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:231)
> at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:106)
> at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1008)
> at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1294)
> at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1289)
> at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1262)
> at com.engine.drools.hardconstraints.MaxHoursPerDayTester.testMaxHoursTwoShiftsViolatedSplitByMidnightType(MaxHoursPerDayTester.java:67)
> 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:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
> Caused by: java.lang.ClassCastException: com.reproducer.engine.domain.contract.Contract cannot be cast to com.reproducer.engine.domain.EmployeeRosterInfo
> at org.drools.base.com.reproducer.engine.domain.EmployeeRosterInfo1136687844$getProfileDayType.getValue(Unknown Source)
> at org.drools.core.base.ClassFieldReader.getValue(ClassFieldReader.java:91)
> at org.drools.core.rule.Declaration.getValue(Declaration.java:228)
> at org.drools.core.base.mvel.MVELCompilationUnit.updateFactory(MVELCompilationUnit.java:359)
> at org.drools.core.base.mvel.MVELCompilationUnit.getFactory(MVELCompilationUnit.java:291)
> at org.drools.core.base.accumulators.MVELAccumulatorFunctionExecutor.accumulate(MVELAccumulatorFunctionExecutor.java:116)
> at org.drools.core.rule.MultiAccumulate.accumulate(MultiAccumulate.java:90)
> ... 40 more
> {code}
> If I remove the 'or' clause from the rule by commenting out the lines as below, the error goes away.
> {code:title=Error.java|borderStyle=solid}
> $contract : Contract( $contractRefId : contractRefId, $scope : scope )
> // (or
> $employee : Employee ($scope == ContractScope.EmployeeContract && employeeId == $contractRefId)
> // $employee : Employee ($scope == ContractScope.TeamContract)
> // )
> {code}
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