[jboss-jira] [JBoss JIRA] Created: (JBRULES-1926) Exception when comparing values in map using variables

[Joe White (JIRA)]

Exception when comparing values in map using variables
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                 Key: JBRULES-1926
                 URL: https://jira.jboss.org/jira/browse/JBRULES-1926
             Project: JBoss Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-compiler
    Affects Versions:  5.0.0.M4
         Environment: java 1.5 Drools trunk
            Reporter: Joe White
            Assignee: Mark Proctor


See testListOfMaps in the MiscTest object in drools-compiler

org.drools.RuntimeDroolsException: Exception executing predicate org.drools.base.mvel.MVELPredicateExpression at 1be16f5
	at org.drools.rule.PredicateConstraint.isAllowedCachedLeft(PredicateConstraint.java:298)
	at org.drools.common.SingleBetaConstraints.isAllowedCachedLeft(SingleBetaConstraints.java:138)
	at org.drools.reteoo.FromNode.evaluateAndPropagate(FromNode.java:152)
	at org.drools.reteoo.FromNode.assertLeftTuple(FromNode.java:104)
	at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:120)
	at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:28)
	at org.drools.reteoo.FromNode.evaluateAndPropagate(FromNode.java:156)
	at org.drools.reteoo.FromNode.assertLeftTuple(FromNode.java:104)
	at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:120)
	at org.drools.reteoo.SingleLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:81)
	at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:142)
	at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:42)
	at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:183)
	at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:146)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1002)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:970)
	at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:740)
	at com.sample.TestListOfMaps.testInnerString(TestListOfMaps.java:39)
	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:585)
	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:232)
	at junit.framework.TestSuite.run(TestSuite.java:227)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: [Error: this['MSG']]
[Near : {... Unknown ....}]
             ^
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:322)
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:134)
	at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:127)
	at org.mvel2.MVELRuntime.execute(MVELRuntime.java:91)
	at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:101)
	at org.mvel2.MVEL.executeExpression(MVEL.java:1077)
	at org.drools.base.extractors.MVELClassFieldReader.getValue(MVELClassFieldReader.java:94)
	at org.drools.base.ClassFieldReader.getValue(ClassFieldReader.java:90)
	at org.drools.rule.Declaration.getValue(Declaration.java:244)
	at org.drools.base.mvel.DroolsMVELPreviousDeclarationVariable.getValue(DroolsMVELPreviousDeclarationVariable.java:52)
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getBeanProperty(ReflectiveAccessorOptimizer.java:374)
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:282)
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:134)
	at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:127)
	at org.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:81)
	at org.mvel2.MVELRuntime.execute(MVELRuntime.java:91)
	at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:101)
	at org.mvel2.MVEL.executeExpression(MVEL.java:1025)
	at org.drools.base.mvel.MVELPredicateExpression.evaluate(MVELPredicateExpression.java:75)
	at org.drools.rule.PredicateConstraint.isAllowedCachedLeft(PredicateConstraint.java:291)
	... 36 more
Caused by: java.lang.NullPointerException
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getCollectionProperty(ReflectiveAccessorOptimizer.java:530)
	at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:288)
	... 55 more

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