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  1. OptaPlanner
  2. PLANNER-2687

TSP example corrupted after a problem change

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    • 2022 Week 14-16 (from Apr 4)
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      1. cd optaplanner-examples & mvn exec:java
      2. open the Traveling salesman example
      3. pick any dataset and start solving
      4. during solving, left-click on the canvas

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      1. cd optaplanner-examples & mvn exec:java 2. open the Traveling salesman example 3. pick any dataset and start solving 4. during solving, left-click on the canvas
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    Description

      Traveling salesman example throws an exception informing about a chained domain corruption after a problem change:

      java.lang.IllegalStateException: The supply (ExternalizedSingletonInverseVariableSupply(previousStandstill)) is corrupted, because the entity (Amsterdam) for sourceVariable (previousStandstill) cannot be retracted: the entity was never inserted for that value (Luxembourg).

      The issue starts manifesting since the commit https://github.com/kiegroup/optaplanner/commit/01bf1996554c1fd8c07d18975d6c0f83949a2ae1.

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          is related to

          Bug - A problem that impairs or prevents the functions of the product. PLANNER-2697 TSP example: Corrupted listener after changing visit connections while solving

          • Minor - To be worked after urgent, high, and medium priorities are resolved. This term is chosen when the severity of the issue is low, or the complexity or effort to correct it may be higher, relatively speaking. For low priority issues, known workarounds exist or are not needed due to the trivial effort needed to address the issue.
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              jlocker Jiří Locker
              rsynek@redhat.com Radovan Synek
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