[jboss-jira] [JBoss JIRA] (DROOLS-2170) 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)

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-2170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco updated DROOLS-2170:
--------------------------------
    Sprint: 2017 Week 49-50


> 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 had no idea which class file it's expecting the room property on in this error message.
> I 'll needed 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}
> Reproduce recipe: 
> - take meeting scheduling example in optaplanner-examplse
> - remove getters and setters for room in MeetingAssignment.java
> - remove all rules in the drl (to avoid it crashing on something else sooner), especially those that involve the room.
> - the error occurs when DroolsScoreDirector.update(meetingAssignment, "room") is called



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