Hi Andrew, I can't reproduce your problem. > The BestSolution is not null although the best score is. The LocalSearchSolverScope cannot have a best solution and not a best score. Could you debug to see where LocalSearchSolverScope.setBestSolution() is called and why LocalSearchSolverScope.setBestScore() isn't called or is called with a null argument? With kind regards, Geoffrey De Smet Andrew Waterman schreef: > Hi, > > I migrated some solver code that I had working on 5.0M4 to the 5.1.0 > implementation. I'm now seeing the following while running the solver: > > java.lang.NullPointerException > at org.drools.solver.core.score.DefaultSimpleScore.compareTo > (DefaultSimpleScore.java:73) > at org.drools.solver.core.score.DefaultSimpleScore.compareTo > (DefaultSimpleScore.java:13) > at > org.drools.solver.core.localsearch.bestsolution.BestSolutionRecaller.stepTaken > (BestSolutionRecaller.java:56) > at > org.drools.solver.core.localsearch.DefaultLocalSearchSolver.stepTaken > (DefaultLocalSearchSolver.java:171) > at > org.drools.solver.core.localsearch.DefaultLocalSearchSolver.solveImplementation > (DefaultLocalSearchSolver.java:121) > at org.drools.solver.core.AbstractSolver.solve(AbstractSolver.java:41) > > I ran my test with a debugger attached, and this call is returning a > Null: > > Score bestScore = localSearchSolverScope.getBestScore(); > <org.drools.solver.core.localsearch.bestsolution.BestSolutionRecaller: > 55> > > The BestSolution is not null although the best score is. > > Should I file an issue on this in JIRA? Or perhaps this reflects some > change to the old code that I didn't migrate properly? > > best wishes, > > Andrew > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Hi Andrew, I can't reproduce your problem. > The BestSolution is not null although the best score is. The LocalSearchSolverScope cannot have a best solution and not a best score. Could you debug to see where LocalSearchSolverScope.setBestSolution () is called and why LocalSearchSolverScope.setBestScore() isn't called or is called with a null argument? With kind regards, Geoffrey De Smet Andrew Waterman schreef: > Hi, > > I migrated some solver code that I had working on 5.0M4 to the 5.1.0 > implementation. I'm now seeing the following while running the > solver: > > java.lang.NullPointerException > at org.drools.solver.core.score.DefaultSimpleScore.compareTo > (DefaultSimpleScore.java:73) > at org.drools.solver.core.score.DefaultSimpleScore.compareTo > (DefaultSimpleScore.java:13) > at > org.drools.solver.core.localsearch.bestsolution.BestSolutionRecaller.stepTaken > (BestSolutionRecaller.java:56) > at > org.drools.solver.core.localsearch.DefaultLocalSearchSolver.stepTaken > (DefaultLocalSearchSolver.java:171) > at > org.drools.solver.core.localsearch.DefaultLocalSearchSolver.solveImplementation > (DefaultLocalSearchSolver.java:121) > at org.drools.solver.core.AbstractSolver.solve(AbstractSolver.java: > 41) > > I ran my test with a debugger attached, and this call is returning a > Null: > > Score bestScore = localSearchSolverScope.getBestScore(); > < > org.drools.solver.core.localsearch.bestsolution.BestSolutionRecaller: > 55> > > The BestSolution is not null although the best score is. > > Should I file an issue on this in JIRA? Or perhaps this reflects > some > change to the old code that I didn't migrate properly? > > best wishes, > > Andrew > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users