[jboss-jira] [JBoss JIRA] (JBRULES-3265) Planner crashes with NoSuchElementException in PlanningValueWalker

[Geoffrey De Smet (Created) (JIRA)]

Planner crashes with NoSuchElementException in PlanningValueWalker
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                 Key: JBRULES-3265
                 URL: https://issues.jboss.org/browse/JBRULES-3265
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-planner
            Reporter: Geoffrey De Smet
            Assignee: Geoffrey De Smet
            Priority: Minor


"
After debugging, seems like cachedPlanningValues in PlanningValueCreator is
being created as an empty collection and when PlanningValueWalker gets
cachedPlanningValues's iterator and tries to iterate through it then it gets
a  NoSuchElementException. I am a little confused as to when the
extractPlanningValues method is called in PlanningValueSelector to get a
collection of planned values a null is begin passed in instead of a planning
entity which is responsible for the empty cachedPlanningValues collection.
"

{code}
java.util.NoSuchElementException
	at java.util.AbstractList$SimpleListIterator.next(AbstractList.java:61)
	at
org.drools.planner.core.heuristic.selector.variable.PlanningValueWalker.initWalk(PlanningValueWalker.java:90)
	at
org.drools.planner.core.heuristic.selector.variable.PlanningVariableWalker.initWalk(PlanningVariableWalker.java:104)
	at
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:58)
	at
org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:62)
	at
org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:166)
	at
org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:138)

{code}

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