Re: [rules-users] 5.3.0 CR1 has broken existing rules/flows

I recently upgraded from 5.2.0 Final to 5.3.0 CR1 because I was experiencing memory leaks in 5.2.0 Final due to a known bug that was fixed in 5.3.0 CR1. I have a suite of FitNesse tests that exercise the majority of my rules and flows, and I can demonstrate that the memory leak is indeed fixed, but one of my tests is now failing. If I revert back to 5.2.0 Final, all is well. I've been trying to determine the root cause for the past 3 days, but I'm not getting anywhere. I suspect that it's related to an interaction between 2 rules, e.g. one rule modifies something that causes the second rule to fire, but the second rule chokes in the consequence when it tries to execute a modify() statement. If I comment out the modify portion, the rule fires fine. I wish I could provide an example, but my implementation is too complex for that and I haven't been able to reproduce it in a stand-alone example. I know a stack trace probably won't tell you much, but I've included it below just in case. If anyone has any ideas, I'd love to hear them. If there's any additional information you think might help diagnose the problem, I'd be happy to provide it. Thanks, Jamie org.drools.runtime.rule.ConsequenceException: rule: Rule 022 - Load Buyer Activity at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1101) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1029) at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1251) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:708) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:672) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218) at com.llbean.fraud.rule.engine.DroolsRulesEngine.invokeRules(DroolsRulesEngine.java:119) at com.llbean.fraud.rule.engine.DroolsRulesEngine.invokeRules(DroolsRulesEngine.java:81) at com.llbean.fraud.fitnesse.fixtures.tests.TestFraudRules.execute(TestFraudRules.java:116) at fit.ColumnFixture.executeIfNeeded(ColumnFixture.java:57) at fit.ColumnFixture.check(ColumnFixture.java:46) at fit.Binding$QueryBinding.doCell(Binding.java:188) at fit.ColumnFixture.doCell(ColumnFixture.java:37) at fit.Fixture.doCells(Fixture.java:171) at fit.Fixture.doRow(Fixture.java:165) at fit.ColumnFixture.doRow(ColumnFixture.java:25) at fit.Fixture.doRows(Fixture.java:159) at fit.ColumnFixture.doRows(ColumnFixture.java:18) at fit.Fixture.doTable(Fixture.java:153) at fit.Fixture.interpretFollowingTables(Fixture.java:119) at fit.Fixture.interpretTables(Fixture.java:105) at fit.Fixture.doTables(Fixture.java:79) at com.llbean.test.fitnesse.servletrunner.server.LLBFitServer.process(LLBFitServer.java:120) at com.llbean.test.fitnesse.servletrunner.server.LLBFitServer.runTests(LLBFitServer.java:40) at com.llbean.test.fitnesse.servletrunner.servlet.FitServlet.service(FitServlet.java:32) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1530) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:829) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:458) at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:175) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:91) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:862) at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:178) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:455) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:384) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:272) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217) at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1550) Caused by: java.lang.NullPointerException at org.drools.reteoo.RuleTerminalNode.createActivations(RuleTerminalNode.java:276) at org.drools.reteoo.RuleTerminalNode.modifyLeftTuple(RuleTerminalNode.java:326) at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateModifyChildLeftTuple(SingleLeftTupleSinkAdapter.java:273) at org.drools.reteoo.EvalConditionNode.modifyLeftTuple(EvalConditionNode.java:234) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateModifyChildLeftTuple(CompositeLeftTupleSinkAdapter.java:295) at org.drools.reteoo.JoinNode.modifyLeftTuple(JoinNode.java:380) at org.drools.reteoo.BetaNode.modifyLeftTuple(BetaNode.java:450) at org.drools.reteoo.JoinNode.modifyLeftTuple(JoinNode.java:446) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateModifyObject(CompositeLeftTupleSinkAdapter.java:260) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateModifyObject(CompositeLeftTupleSinkAdapter.java:275) at org.drools.reteoo.LeftInputAdapterNode.modifyObject(LeftInputAdapterNode.java:174) at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateModifyObject(CompositeObjectSinkAdapter.java:461) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateModifyObject(CompositeObjectSinkAdapter.java:429) at org.drools.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:277) at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:271) at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:459) at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:363) at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:298) at com.llbean.droolstest.Rule_Rule_022___Load_Buyer_Activity.defaultConsequence(Rule_Rule_022___Load_Buyer_Activity.java:15) at com.llbean.droolstest.Rule_Rule_022___Load_Buyer_ActivityDefaultConsequenceInvokerGenerated.evaluate(Unknown Source) at com.llbean.droolstest.Rule_Rule_022___Load_Buyer_ActivityDefaultConsequenceInvoker.evaluate(Unknown Source) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1091) ... 45 more -- View this message in context: http://drools.46999.n3.nabble.com/5-3-0-CR1-has-broken-existing-rules-flo... 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