[rules-users] ClassCastException after migrating from Drools 4.x to v5.5
Mark Proctor
mproctor at codehaus.org
Sun Feb 17 22:32:30 EST 2013
Looks like an 'or' bug. Which is surprising, as we had 'or' bugs in 4.x, and fixed a lot of them for 5.x.
Could you build and try 5.5.x here now, this is the branch for the 5.6 release:
https://github.com/droolsjbpm/drools/tree/5.5.x
If it's still not fixed, could you write an isolated test? Seems like you only need one rule, and two or three facts to trigger it. Ideally please re-use facts from the test classes already existing - details of how to write tests, and submit as pull requests is here:
http://docs.jboss.org/drools/release/5.4.0.Final/droolsjbpm-introduction-docs/html/gettingstarted.html
If you can get us this test pull request asap (next few days), we'll fix and get it into the 5.6 release. Otherwise you may have to wait some time for a fix.
Mark
On 18 Feb 2013, at 01:10, ismaximum <mnrz57 at gmail.com> wrote:
> Ah sorry.. It seems my first message hasn't been accepted by the user-list...
> I post it again here:
>
> After we upgrade to Drools v 5.5 there are hundreds of errors in test cases
> related to our rules.
> One of which is related to this ClassCastException which I noticed it occurs
> when we have nested OR statements
>
> Here is one example:
>
> rule "employeeContributionStartDateAfterAccountStartDate"
> ruleflow-group "EmployeeValidation"
> when
> // We only want this rule to fire when we are using the
> create:Employee node. NOTE that the startDate or contributionStartDate
> cannot be updated
> EmployeeDetailsRulesModel(create == true)
> // Get the date to validate
> Employee( $contributionStartDate : contributionStartDate != null )
> (or
> (and
> // i.e. The contribution start date and the account start
> dates are both specified.
> Account( $accountStartDate : accountStartDate != null )
> eval( $contributionStartDate.compare($accountStartDate) < 0
> )
> )
> (and
> // The contribution start date is specified but the account
> start date is not, but should be defaulted to today.
> Account( accountId == null, accountStartDate == null )
> SystemConstants($today : currentSystemDateWithoutTime)
> eval(
> $contributionStartDate.compare(jaxbUtils.toXMLGregorianCalendarDateOnly($today))
> < 0 )
> )
> (and
> // for an existing account where the account start date is
> not specified.
> Account( $accountId : accountId != null, $accountStartDate :
> accountStartDate == null )
> $composerMemberAccount : BaseMemberAccount() from
> memberAccountDAO.getMemberAccount($accountId)
> eval(
> $contributionStartDate.compare(jaxbUtils.toXMLGregorianCalendarDateOnly($composerMemberAccount.getFundStartDate()))
> < 0 )
> )
> )
> then
> error(ApplicationArea.EMPLOYEE, kcontext);
> end
>
>
>
> Here is the error message:
>
> Exception executing consequence for rule "employeePreloadSystemConstants" in
> com.cname.rules.validation.business: org.drools.RuntimeDroolsException:
> com.cname.rules.validation.business.Rule_employeeContributionStartDateAfterAccountStartDate_357b04c70dac4f469ea9cedd93d15da7Eval1Invoker at d3924bbc
> : java.lang.ClassCastException:
> com.cname.rules.model.common.EmployeeDetailsRulesModel cannot be cast to
> com.cname.cbis.domain.update.Account
> at
> org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
> at
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
> at
> org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
> at
> org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
> at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
> at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
> at
> org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
> at
> org.drools.command.runtime.rule.FireAllRulesCommand.execute(FireAllRulesCommand.java:106)
> at
> org.drools.command.runtime.rule.FireAllRulesCommand.execute(FireAllRulesCommand.java:32)
> at
> org.drools.command.runtime.BatchExecutionCommandImpl.execute(BatchExecutionCommandImpl.java:155)
> at
> org.drools.command.runtime.BatchExecutionCommandImpl.execute(BatchExecutionCommandImpl.java:76)
> at
> org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:264)
> at
> com.cname.rules.CBISAbstractRuleCoverageTest.runValidation(CBISAbstractRuleCoverageTest.java:441)
> at
> com.cname.rules.business.EmployeeBusinessRulesTest.testEmployeeContributionStartDateAfterAccountStartDate(EmployeeBusinessRulesTest.java:348)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at junit.framework.TestCase.runTest(TestCase.java:168)
> at junit.framework.TestCase.runBare(TestCase.java:134)
> at junit.framework.TestResult$1.protect(TestResult.java:110)
> at junit.framework.TestResult.runProtected(TestResult.java:128)
> at junit.framework.TestResult.run(TestResult.java:113)
> at junit.framework.TestCase.run(TestCase.java:124)
> at junit.framework.TestSuite.runTest(TestSuite.java:243)
> at junit.framework.TestSuite.run(TestSuite.java:238)
> at
> org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
> 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:467)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Caused by: org.drools.RuntimeDroolsException:
> com.cname.rules.validation.business.Rule_employeeContributionStartDateAfterAccountStartDate_357b04c70dac4f469ea9cedd93d15da7Eval1Invoker at d3924bbc
> : java.lang.ClassCastException:
> com.cname.rules.model.common.EmployeeDetailsRulesModel cannot be cast to
> com.cname.cbis.domain.update.Account
> at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:119)
> at
> org.drools.reteoo.EvalConditionNode.assertLeftTuple(EvalConditionNode.java:176)
> at
> org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:196)
> at
> org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:71)
> at org.drools.reteoo.JoinNode.propagateFromRight(JoinNode.java:159)
> at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:148)
> at
> org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
> at
> org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
> at
> org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
> at
> org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
> at
> org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
> at
> org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:311)
> at
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
> at
> org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:192)
> at
> org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:186)
> at
> com.cname.rules.validation.business.Rule_employeePreloadSystemConstants_dcf7facf199041d3aa8f3b85387b4318.defaultConsequence(Rule_employeePreloadSystemConstants_dcf7facf199041d3aa8f3b85387b4318.java:7)
> at
> com.cname.rules.validation.business.Rule_employeePreloadSystemConstants_dcf7facf199041d3aa8f3b85387b4318DefaultConsequenceInvokerGenerated.evaluate(Unknown
> Source)
> at
> com.cname.rules.validation.business.Rule_employeePreloadSystemConstants_dcf7facf199041d3aa8f3b85387b4318DefaultConsequenceInvoker.evaluate(Unknown
> Source)
> at
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
> ... 31 more
> Caused by: java.lang.ClassCastException:
> com.cname.rules.model.common.EmployeeDetailsRulesModel cannot be cast to
> com.cname.cbis.domain.update.Account
> at
> org.drools.base.com.cname.cbis.domain.update.Account1384796854$getAccountStartDate.getValue(Unknown
> Source)
> at
> org.drools.base.ClassFieldReader.getValue(ClassFieldReader.java:87)
> at org.drools.rule.Declaration.getValue(Declaration.java:233)
> at
> com.cname.rules.validation.business.Rule_employeeContributionStartDateAfterAccountStartDate_357b04c70dac4f469ea9cedd93d15da7Eval1InvokerGenerated.evaluate(Unknown
> Source)
> at
> com.cname.rules.validation.business.Rule_employeeContributionStartDateAfterAccountStartDate_357b04c70dac4f469ea9cedd93d15da7Eval1Invoker.evaluate(Unknown
> Source)
> at org.drools.rule.EvalCondition.isAllowed(EvalCondition.java:114)
> ... 49 more
>
>
>
> --
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