The behavior of the 'contains' operator changed from 5.0 to 5.2M2 ----------------------------------------------------------------- Key: JBRULES-2984 URL: https://issues.jboss.org/browse/JBRULES-2984 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 5.2.0.M2 Environment: Windows Java 5 Drools 5.2 M2 Reporter: Joe White Assignee: Edson Tirelli Fix For: 5.2.0.CR1 In the rule below if the value for 'KEY' is a string the rule throws the exception below. this worked as essentially as a substring matches in 5.0 *****************RULE************************** rule "map list test rule" salience 155 when Map(this['KEY'] contains 'one') then System.out.println("HIT"); end **************Exception************************** org.drools.RuntimeDroolsException: Exception executing predicate contains0.evaluate( this["KEY"], "one" ) at org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:298) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:134) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:332) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:293) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:905) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:864) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:251) at com.recondotech.droolsTest.MapListTest.testUpdate(MapListTest.java:49) 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:592) 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.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41) at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173) 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.run(ParentRunner.java:220) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) 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: [Error: contains0.evaluate( this["KEY"], "one" ): java.lang.String] [Near : {... contains0.evaluate( this["KEY" ....}] ^ [Line: 1, Column: 1] at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:409) at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:140) at org.mvel2.ast.ASTNode.optimize(ASTNode.java:158) at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:115) at org.mvel2.MVELRuntime.execute(MVELRuntime.java:87) at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:125) at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:118) at org.mvel2.MVEL.executeExpression(MVEL.java:954) at org.drools.base.mvel.MVELPredicateExpression.evaluate(MVELPredicateExpression.java:97) at org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:291) ... 34 more Caused by: java.lang.reflect.InvocationTargetException 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:592) at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:1029) at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:338) ... 43 more Caused by: java.lang.ClassCastException: java.lang.String at org.drools.base.evaluators.SetEvaluatorsDefinition$ObjectContainsEvaluator.evaluate(SetEvaluatorsDefinition.java:1029) at org.drools.base.EvaluatorWrapper.evaluate(EvaluatorWrapper.java:80) ... 49 more