I get the following exception when i try to solve and don't know if i didn't set something properly on my side or if there is a bug in the planner. 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. Any help on this issue will be much appreciated. 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) -- View this message in context: http://drools.46999.n3.nabble.com/drools-planner-5-3-0-Final-cached-plann... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users