[jboss-jira] [JBoss JIRA] Closed: (JBRULES-1458) illegal access error in consequence

illegal access error in consequence ----------------------------------- Key: JBRULES-1458 URL: http://jira.jboss.com/jira/browse/JBRULES-1458 Project: JBoss Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 4.0.4 Reporter: Godmar Back Assigned To: Mark Proctor This test: package test; import java.util.Collections; dialect "mvel" rule "Rule #1" when then insert(Collections.singletonMap("content", "hello")); end fails with: org.mvel.PropertyAccessException: unable to resolve property: drools.insert(Collections.singletonMap("content", "hello")) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:276) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:107) at org.mvel.ast.VariableDeepPropertyNode.getReducedValueAccelerated(VariableDeepPropertyNode.java:32) at org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:71) at org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:23) at org.mvel.MVELRuntime.execute(MVELRuntime.java:88) at org.mvel.CompiledExpression.getValue(CompiledExpression.java:107) at org.mvel.MVEL.executeExpression(MVEL.java:223) at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:47) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433) at org.libx.autodetect.DroolsDriver$Host.fireAllRules(DroolsDriver.java:63) at org.libx.autodetect.DroolsDriver.main(DroolsDriver.java:135) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:588) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:257) ... 14 more Caused by: java.lang.IllegalAccessError: class org.drools.shadow.java.util.Collections$SingletonMapShadowProxy cannot access its superclass java.util.Collections$SingletonMap at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:60) at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:79) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.drools.reteoo.Rete$ClassObjectTypeConf.loadOrGenerateProxy(Rete.java:547) at org.drools.reteoo.Rete$ClassObjectTypeConf.defineShadowProxyData(Rete.java:494) at org.drools.reteoo.Rete$ClassObjectTypeConf.<init>(Rete.java:461) at org.drools.reteoo.Rete.assertObject(Rete.java:152) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:909) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:881) at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:67) at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:61) ... 20 more Exception in thread "main" org.drools.spi.ConsequenceException: org.mvel.PropertyAccessException: unable to resolve property: drools.insert(Collections.singletonMap("content", "hello")) at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:14) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433) at org.libx.autodetect.DroolsDriver$Host.fireAllRules(DroolsDriver.java:63) at org.libx.autodetect.DroolsDriver.main(DroolsDriver.java:135) Caused by: org.mvel.PropertyAccessException: unable to resolve property: drools.insert(Collections.singletonMap("content", "hello")) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:276) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:107) at org.mvel.ast.VariableDeepPropertyNode.getReducedValueAccelerated(VariableDeepPropertyNode.java:32) at org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:71) at org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:23) at org.mvel.MVELRuntime.execute(MVELRuntime.java:88) at org.mvel.CompiledExpression.getValue(CompiledExpression.java:107) at org.mvel.MVEL.executeExpression(MVEL.java:223) at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:47) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550) ... 5 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:588) at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:257) ... 14 more Caused by: java.lang.IllegalAccessError: class org.drools.shadow.java.util.Collections$SingletonMapShadowProxy cannot access its superclass java.util.Collections$SingletonMap at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at org.drools.rule.MapBackedClassLoader.fastFindClass(MapBackedClassLoader.java:60) at org.drools.rule.MapBackedClassLoader.loadClass(MapBackedClassLoader.java:79) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at org.drools.reteoo.Rete$ClassObjectTypeConf.loadOrGenerateProxy(Rete.java:547) at org.drools.reteoo.Rete$ClassObjectTypeConf.defineShadowProxyData(Rete.java:494) at org.drools.reteoo.Rete$ClassObjectTypeConf.<init>(Rete.java:461) at org.drools.reteoo.Rete.assertObject(Rete.java:152) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:909) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:881) at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:67) at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:61) ... 20 more --- I assume this is a bug, since this code works: package test; import java.util.Collections; import java.util.Map; import java.util.HashMap; dialect "mvel" rule "Rule #1" when then m = new HashMap(); m.put("content", "hello"); insert(m); end rule "Rule #2" when s : Map (this["content"] == "hello") then System.out.println("found it: " + s); end which outputs: found it: {content=hello} I note that java.util.Collections.singletonMap is public static.