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  1. OptaPlanner
  2. PLANNER-238

NullPointerException when calling ScoreDirector.beforeEntityAdded with new Vehicle

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Critical Critical
    • 6.1.0.CR2
    • 6.0.1.Final
    • optaplanner-core
    • None
    • Workaround Exists
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      Workaround for 6.0.1:
      Presuming you're doing this in a ProblemFactChange, call scoreDirector.beforeProblemFactRemoved() instead of beforeEntityRemoved()
      => Treat it as a problem fact for that... but treat is as an entity for everything else.

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      Workaround for 6.0.1: Presuming you're doing this in a ProblemFactChange, call scoreDirector.beforeProblemFactRemoved() instead of beforeEntityRemoved() => Treat it as a problem fact for that... but treat is as an entity for everything else.

      Flowing the code of VehicleRoutingPanel.insertLocationAndCustomer to insert a new Vehicle to the solution, my code is failing when the new Vehicle is reported to the score director:
      scoreDirector.beforeEntityAdded(newVehicle);

      The exception is NullPointerException at 

      org.optaplanner.core.impl.domain.variable.listener.PlanningVariableListenerSupport.beforeEntityAdded(PlanningVariableListenerSupport.java:54)

            gdesmet@redhat.com Geoffrey De Smet (Inactive)
            hagai.shatz Hagai Shatz (Inactive)
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              Created:
              Updated:
              Resolved: