Re: [rules-users] "unable to resolve token" in simple mvel RHS

md5sum ../WEB-INF/lib/mvel14-1.2.21.jar

Godmar, Can you please confirm what version of MVEL you are using? Thanks, Edson 2008/2/19, Godmar Back <godmar(a)gmail.com&gt;: > > > > Hi, > > with Drools 4.0.4 and MVEL 1.4, simple RHS like this one fail for me: > > --- > package test; > > dialect "mvel" > > rule "Rule #1" > when > then > System.out.println("now computing 1+1..."); > Integer two = new Integer(2); > System.out.println(two); > end > --- > > now computing 1+1... > org.mvel.CompileException: unable to resolve property: two > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:288) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:109) > at org.mvel.ast.ContextDeepPropertyNode.getReducedValueAccelerated(ContextDeepPropertyNode.java:26) > at org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:123) > at org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:26) > at org.mvel.ExecutableAccessor.getValue(ExecutableAccessor.java:45) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:521) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:260) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:109) > at org.mvel.ast.LiteralDeepPropertyNode.getReducedValueAccelerated(LiteralDeepPropertyNode.java:28) > at org.mvel.MVELRuntime.execute(MVELRuntime.java:88) > at org.mvel.CompiledExpression.getValue(CompiledExpression.java:111) > at org.mvel.MVEL.executeExpression(MVEL.java:235) > 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$Host.fireAllRules(DroolsDriver.java:63) > at org.libx.autodetect.DroolsDriver.main(DroolsDriver.java:136) > Caused by: org.mvel.PropertyAccessException: unable to resolve property: two > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getBeanProperty(ReflectiveAccessorOptimizer.java:382) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:257) > ... 19 more > org.mvel.CompileException: unable to resolve token: two > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:297) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:109) > at org.mvel.ast.LiteralDeepPropertyNode.getReducedValueAccelerated(LiteralDeepPropertyNode.java:28) > at org.mvel.MVELRuntime.execute(MVELRuntime.java:88) > at org.mvel.CompiledExpression.getValue(CompiledExpression.java:111) > at org.mvel.MVEL.executeExpression(MVEL.java:235) > at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:47) > at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550) > at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514) > at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:471) > at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433) > at org.libx.autodetect.DroolsDriver$Host.fireAllRules(DroolsDriver.java:63) > at org.libx.autodetect.DroolsDriver.main(DroolsDriver.java:136) > Caused by: org.mvel.UnresolveablePropertyException: unable to resolve token: two > at org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:127) > at org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:26) > at org.mvel.ExecutableAccessor.getValue(ExecutableAccessor.java:45) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getMethod(ReflectiveAccessorOptimizer.java:521) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:260) > ... 12 more > Caused by: org.mvel.CompileException: unable to resolve property: two > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:288) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:109) > at org.mvel.ast.ContextDeepPropertyNode.getReducedValueAccelerated(ContextDeepPropertyNode.java:26) > at org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:123) > ... 16 more > Caused by: org.mvel.PropertyAccessException: unable to resolve property: two > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getBeanProperty(ReflectiveAccessorOptimizer.java:382) > at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:257) > ... 19 more > > etc. > > It appears to be related to the use of MVEL - the same rule with > 'dialect "java"' executes correctly. > > - Godmar > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development Office: +55 11 3529-6000 Mobile: +55 11 9287-5646 JBoss, a division of Red Hat @ www.jboss.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users