Geoffrey De Smet created DROOLS-2170: ---------------------------------------- Summary: Unhelful error message: "Unknown property" should not only mention the name of the property, but also the class on which it is expecting it (and the DRL line causing it) Key: DROOLS-2170 URL: https://issues.jboss.org/browse/DROOLS-2170 Project: Drools Issue Type: Enhancement Components: core engine Affects Versions: 7.5.0.Final Reporter: Geoffrey De Smet Assignee: Mario Fusco I have no idea which class file it's expecting the room property on in this error message. I 'll need to look for a needle in a haystack: {code} Caused by: java.lang.RuntimeException: Unknown property: room at org.drools.core.reteoo.PropertySpecificUtil.setPropertyOnMask(PropertySpecificUtil.java:105) at org.drools.core.reteoo.PropertySpecificUtil.calculatePatternMask(PropertySpecificUtil.java:97) at org.drools.core.reteoo.PropertySpecificUtil.calculatePositiveMask(PropertySpecificUtil.java:68) at org.drools.core.common.NamedEntryPoint.update(NamedEntryPoint.java:327) at org.drools.core.impl.StatefulKnowledgeSessionImpl.update(StatefulKnowledgeSessionImpl.java:1545) at org.optaplanner.core.impl.score.director.drools.DroolsScoreDirector.update(DroolsScoreDirector.java:210) at org.optaplanner.core.impl.score.director.drools.DroolsScoreDirector.afterVariableChanged(DroolsScoreDirector.java:197) at org.optaplanner.core.impl.heuristic.selector.move.generic.ChangeMove.doMoveOnGenuineVariables(ChangeMove.java:78) at org.optaplanner.core.impl.heuristic.move.AbstractMove.doMove(AbstractMove.java:37) at org.optaplanner.core.impl.heuristic.move.AbstractMove.doMove(AbstractMove.java:27) at org.optaplanner.core.impl.constructionheuristic.decider.ConstructionHeuristicDecider.doMove(ConstructionHeuristicDecider.java:124) at org.optaplanner.core.impl.constructionheuristic.decider.ConstructionHeuristicDecider.decideNextStep(ConstructionHeuristicDecider.java:99) at org.optaplanner.core.impl.constructionheuristic.DefaultConstructionHeuristicPhase.solve(DefaultConstructionHeuristicPhase.java:74) at org.optaplanner.core.impl.solver.AbstractSolver.runPhases(AbstractSolver.java:87) at org.optaplanner.core.impl.solver.DefaultSolver.solve(DefaultSolver.java:167) at org.optaplanner.examples.common.business.SolutionBusiness.solve(SolutionBusiness.java:329) at org.optaplanner.examples.common.swingui.SolverAndPersistenceFrame$SolveWorker.doInBackground(SolverAndPersistenceFrame.java:324) at javax.swing.SwingWorker$1.call(SwingWorker.java:295) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at javax.swing.SwingWorker.run(SwingWorker.java:334) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) {code} -- This message was sent by Atlassian JIRA (v7.5.0#75005)