[jboss-jira] [JBoss JIRA] (DROOLS-725) ClassCastException on malformed accumulate

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068305#comment-13068305 ] 

RH Bugzilla Integration commented on DROOLS-725:
------------------------------------------------

Ryan Zhang <rzhang at redhat.com> changed the Status of [bug 1219136|https://bugzilla.redhat.com/show_bug.cgi?id=1219136] from MODIFIED to ON_QA

> ClassCastException on malformed accumulate
> ------------------------------------------
>
>                 Key: DROOLS-725
>                 URL: https://issues.jboss.org/browse/DROOLS-725
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.1.0.Final, 6.2.0.CR4
>         Environment: java version "1.7.0_60"
> Java(TM) SE Runtime Environment (build 1.7.0_60-b19)
> Java HotSpot(TM) 64-Bit Server VM (build 24.60-b09, mixed mode)
>            Reporter: Davide Angelocola
>            Assignee: Mario Fusco
>            Priority: Minor
>
> Given a rule like:
> rule "test case"
> when
>    Number() from accumulate(
>          not Number(),
>          init( double total = 0; ),
>          action(  ),
>          reverse( ),
>          result( new Double( total ) ) 
>    )
> then
> 		// no op 
> end
> the following exception is thrown:
> java.lang.ClassCastException: org.drools.compiler.lang.descr.NotDescr cannot be cast to org.drools.compiler.lang.descr.PatternDescr
> 	at org.drools.compiler.lang.descr.AccumulateDescr.getInputPattern(AccumulateDescr.java:194)
> 	at org.drools.compiler.rule.builder.util.PackageBuilderUtil.isReadLocalsFromTuple(PackageBuilderUtil.java:21)
> 	at org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder.build(JavaAccumulateBuilder.java:93)
> 	at org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder.build(JavaAccumulateBuilder.java:66)
> 	at org.drools.compiler.rule.builder.PatternBuilder.build(PatternBuilder.java:320)
> 	at org.drools.compiler.rule.builder.PatternBuilder.build(PatternBuilder.java:138)
> 	at org.drools.compiler.rule.builder.GroupElementBuilder.build(GroupElementBuilder.java:66)
> 	at org.drools.compiler.rule.builder.RuleBuilder.build(RuleBuilder.java:89)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.addRule(KnowledgeBuilderImpl.java:1652)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileRules(KnowledgeBuilderImpl.java:968)
> 	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileAllRules(KnowledgeBuilderImpl.java:844)
> 	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildRules(CompositeKnowledgeBuilderImpl.java:279)
> 	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildPackages(CompositeKnowledgeBuilderImpl.java:103)
> 	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:91)
> 	at org.drools.compiler.kie.builder.impl.AbstractKieModule.buildKnowledgePackages(AbstractKieModule.java:220)
> 	at org.drools.compiler.kie.builder.impl.AbstractKieProject.verify(AbstractKieProject.java:43)
> 	at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildKieProject(KieBuilderImpl.java:208)
> 	at org.drools.compiler.kie.builder.impl.KieBuilderImpl.buildAll(KieBuilderImpl.java:177)
> 	at regressions.DroolsCompilerBugTest.bug(DroolsCompilerBugTest.java:26)
> 	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.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)



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