[jboss-jira] [JBoss JIRA] Created: (JBRULES-1458) illegal access error in consequence
Godmar Back (JIRA)
jira-events at lists.jboss.org
Sat Feb 9 14:25:14 EST 2008
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
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.
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