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

> md5sum ../WEB-INF/lib/mvel14-1.2.21.jar 67b9f1dd16b353327a9ef4fe708a8b62 ../WEB-INF/lib/mvel14-1.2.21.jar (I'm pretty certain this time...) On Feb 19, 2008 1:41 PM, Edson Tirelli <tirelli(a)post.com&gt; wrote: > > 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 > > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users