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  1. OptaPlanner
  2. PLANNER-53

Planner: a Solution with a @PlanningEntityCollectionProperty or @PlanningEntityProperty on a method that does not return a planning entity should fail with a decent error message.

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Details

    • Enhancement
    • Resolution: Done
    • Major
    • 5.4.0.Final
    • None
    • optaplanner-core
    • None

    Description

      "
      I accidently denoted the wrong class with the annotator
      @PlanningEntityCollectionProperty ; a class which was NOT a planning entity.
      Apparently, Drools Planner does not attempt to check for such a possibility,
      hence I get:

      Exception in thread "main" java.lang.NullPointerException
	at
org.drools.planner.core.domain.solution.SolutionDescriptor.getAllFacts(SolutionDescriptor.java:135)
	at
org.drools.planner.core.solution.director.DefaultSolutionDirector.getWorkingFacts(DefaultSolutionDirector.java:129)
	at
org.drools.planner.core.solution.director.DefaultSolutionDirector.resetWorkingMemory(DefaultSolutionDirector.java:123)
	at
org.drools.planner.core.solution.director.DefaultSolutionDirector.setWorkingSolution(DefaultSolutionDirector.java:97)
	at
org.drools.planner.core.solver.DefaultSolver.setPlanningProblem(DefaultSolver.java:97)
	at in.co.technovia.examduties.ExamDutiesApp.main(ExamDutiesApp.java:47)

      Please check for such a possibility in future versions of Drools Planner and
      emit a more meaningful error message.
      "

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            gdesmet@redhat.com Geoffrey De Smet (Inactive)
            gdesmet@redhat.com Geoffrey De Smet (Inactive)
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              Created:
              Updated:
              Resolved: