Property reactive triggers stateful working memory corruption on CoachShuttleGathering -------------------------------------------------------------------------------------- Key: DROOLS-1369 URL: https://issues.jboss.org/browse/DROOLS-1369 Project: Drools Issue Type: Bug Components: core engine Reporter: Geoffrey De Smet Assignee: Mario Fusco Attachments: DroolsReproducerTest.java Not confirmed yet that this is a drools bug, but it probably is :) Jiri is isolating. To reproduce: Use https://github.com/droolsjbpm/optaplanner/pull/234 and run CloudShuttleGatheringPerformanceTest. {code} java.lang.IllegalStateException: Impossible VariableListener corruption: the expectedWorkingScore (0hard/-397050soft) is not the workingScore (-2000000000hard/-397050soft) after all VariableListeners were triggered without changes to the genuine variables. But all the shadow variable values are still the same, so this is impossible. at org.optaplanner.core.impl.score.director.AbstractScoreDirector.assertShadowVariablesAreNotStale(AbstractScoreDirector.java:488) at org.optaplanner.core.impl.solver.scope.DefaultSolverScope.assertShadowVariablesAreNotStale(DefaultSolverScope.java:140) at org.optaplanner.core.impl.phase.scope.AbstractPhaseScope.assertShadowVariablesAreNotStale(AbstractPhaseScope.java:171) at org.optaplanner.core.impl.phase.AbstractPhase.predictWorkingStepScore(AbstractPhase.java:169) at org.optaplanner.core.impl.localsearch.DefaultLocalSearchPhase.doStep(DefaultLocalSearchPhase.java:102) at org.optaplanner.core.impl.localsearch.DefaultLocalSearchPhase.solve(DefaultLocalSearchPhase.java:92) at org.optaplanner.core.impl.solver.AbstractSolver.runPhases(AbstractSolver.java:87) at org.optaplanner.core.impl.solver.DefaultSolver.solve(DefaultSolver.java:160) at org.optaplanner.examples.common.app.SolverPerformanceTest.runSpeedTest(SolverPerformanceTest.java:65) at org.optaplanner.examples.coachshuttlegathering.app.CoachShuttleGatheringPerformanceTest.solveDemo01FastAssert(CoachShuttleGatheringPerformanceTest.java:52) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298) at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.lang.Thread.run(Thread.java:745) {code}