I was able to reproduce this error locally by updating my version of java to 1.6_31(thought I had but I didn't) The stack trace doesn't give me any information really to go off of. I have around 150 rules of which a dozen will retract the object OrderSideContext. Is there a way to get a better trace to figure out which rule may be causing this? After a retract I thought all other activations on the agenda for the tuple should be cancelled. Is this a wrong assertion?
TIA gboro54 wrote > > I am having an issue with an optimizer stack trace on my linux QA box that > I can't seem to reproduce on my windows development box. The stack trace > is: > > 13:01:50,188 ERROR [stderr] (Thread-123) Exception in thread "Thread-123" > java.lang.RuntimeException: unable to invoke method: > com.billing.domain.context.OrderSideContext.getPrimarySide: target of > method is null > 13:01:50,188 ERROR [stderr] (Thread-123) at > org.mvel2.optimizers.impl.refl.nodes.GetterAccessor.getValue(GetterAccessor.java:66) > 13:01:50,189 ERROR [stderr] (Thread-123) at > org.mvel2.optimizers.impl.refl.nodes.VariableAccessor.getValue(VariableAccessor.java:37) > 13:01:50,189 ERROR [stderr] (Thread-123) at > org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:108) > 13:01:50,189 ERROR [stderr] (Thread-123) at > org.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:107) > 13:01:50,189 ERROR [stderr] (Thread-123) at > org.mvel2.ast.And.getReducedValueAccelerated(And.java:34) > 13:01:50,189 ERROR [stderr] (Thread-123) at > org.mvel2.MVELRuntime.execute(MVELRuntime.java:85) > 13:01:50,190 ERROR [stderr] (Thread-123) at > org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:123) > 13:01:50,190 ERROR [stderr] (Thread-123) at > org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:116) > 13:01:50,190 ERROR [stderr] (Thread-123) at > org.mvel2.MVEL.executeExpression(MVEL.java:930) > 13:01:50,190 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConditionEvaluator.evaluate(MvelConditionEvaluator.java:70) > 13:01:50,190 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConditionEvaluator.ensureBranchEvaluation(MvelConditionEvaluator.java:113) > 13:01:50,191 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConditionEvaluator.ensureCompleteEvaluation(MvelConditionEvaluator.java:106) > 13:01:50,191 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConditionEvaluator.ensureCompleteEvaluation(MvelConditionEvaluator.java:90) > 13:01:50,191 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConditionEvaluator.getAnalyzedCondition(MvelConditionEvaluator.java:82) > 13:01:50,191 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:214) > 13:01:50,191 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConstraint.access$000(MvelConstraint.java:41) > 13:01:50,192 ERROR [stderr] (Thread-123) at > org.drools.rule.constraint.MvelConstraint$1.run(MvelConstraint.java:201) > 13:01:50,192 ERROR [stderr] (Thread-123) at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > 13:01:50,192 ERROR [stderr] (Thread-123) at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > 13:01:50,192 ERROR [stderr] (Thread-123) at > java.lang.Thread.run(Thread.java:662) > 13:01:50,192 ERROR [stderr] (Thread-123) Caused by: > java.lang.NullPointerException > 13:01:50,193 ERROR [stderr] (Thread-123) at > sun.reflect.GeneratedMethodAccessor121.invoke(Unknown Source) > 13:01:50,193 ERROR [stderr] (Thread-123) at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > 13:01:50,193 ERROR [stderr] (Thread-123) at > java.lang.reflect.Method.invoke(Method.java:597) > 13:01:50,193 ERROR [stderr] (Thread-123) at > org.mvel2.optimizers.impl.refl.nodes.GetterAccessor.getValue(GetterAccessor.java:40) > 13:01:50,193 ERROR [stderr] (Thread-123) ... 19 more > > > > We are using a CENTOS with Java 1.6._31 and drools 5.4. > > Thanks > -- View this message in context: http://drools.46999.n3.nabble.com/MVEL-optimizer-error-tp4018714p4018759.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users