[jboss-jira] [JBoss JIRA] (JBRULES-3424) "Exception executing consequence for rule" caused by NPE

[Geoffrey De Smet (JIRA)]

     [ https://issues.jboss.org/browse/JBRULES-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Geoffrey De Smet resolved JBRULES-3424.
---------------------------------------

    Resolution: Rejected


As the exception message says, the "then" part of that rule has a NPE.
Looking at the drl, it's clear that
global java.util.List resultado
is probably still null at that time.
This issue has therefor been rejected.

There's a different issue to allow using globals in Planner: JBRULES-3329.
                
> "Exception executing consequence for rule" caused by NPE
> --------------------------------------------------------
>
>                 Key: JBRULES-3424
>                 URL: https://issues.jboss.org/browse/JBRULES-3424
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-planner
>    Affects Versions: 5.3.0.Final
>         Environment: Eclipse 3.6.2
> JBoss Tools 
> Java(TM) SE Runtime Environment (build 1.6.0_20-b02) / Java HotSpot(TM) Server VM (build 16.3-b01, mixed mode)
>            Reporter: Marcos Roberto Petry
>            Assignee: Geoffrey De Smet
>         Attachments: ProgramacaoEletronica.zip
>
>
> Hello Guys,
> I'm new to Drools/Planner, I working into a Proof of Concept using Planner to create a feature that solve ship arrival scheduling for our Port Management System.
> Following JBoss Planner documentation:
> - A model was defined: br.gov.serpro.sunac.psp.pes.bean
> - A score function: HARD_AND_SOFT
> - Rule was created: AgendamentoEmBerco.drl
> - Solver was initialized.
> Two tests were implemented: 
> - AgendamentoTest simple rule test with no solver. Works fine.
> - ProgramacaoEletronicaSolutionTest test same rule with solver support.
> So, when runnig the ProgramacaoEletronicaSolutionTest I've got a Exception
> Exception executing consequence for rule "Agendamento com colisao de horário para o berço" in br.gov.serpro.sunac.psp.pes.rules: java.lang.NullPointerException
> 	at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
> 	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1101)
> 	at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1029)
> 	at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1251)
> 	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:708)
> 	at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:672)
> 	at org.drools.planner.core.solution.director.DefaultSolutionDirector.calculateScoreFromWorkingMemory(DefaultSolutionDirector.java:136)
> 	at org.drools.planner.core.solver.DefaultSolverScope.calculateScoreFromWorkingMemory(DefaultSolverScope.java:101)
> 	at org.drools.planner.core.bestsolution.BestSolutionRecaller.solvingStarted(BestSolutionRecaller.java:52)
> 	at org.drools.planner.core.solver.DefaultSolver.solvingStarted(DefaultSolver.java:156)
> 	at org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:137)
> 	at br.gov.serpro.sunac.psp.pes.solution.ProgramacaoEletronicaSolutionTest.checkSolver(ProgramacaoEletronicaSolutionTest.java:140)
> 	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 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
> 	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:30)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
> 	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.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
> 	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
> 	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: java.lang.NullPointerException
> 	at br.gov.serpro.sunac.psp.pes.rules.Rule_Agendamento_com_colisao_de_hor_rio_para_o_ber_o.defaultConsequence(Rule_Agendamento_com_colisao_de_hor_rio_para_o_ber_o.java:7)
> 	at br.gov.serpro.sunac.psp.pes.rules.Rule_Agendamento_com_colisao_de_hor_rio_para_o_ber_oDefaultConsequenceInvoker.evaluate(Unknown Source)
> 	at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1091)
> 	... 36 more

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