[jboss-jira] [JBoss JIRA] (JBRULES-3439) NPE in AbstractTabuAcceptor.stepTaken

[Chris Dolan (JIRA)]

Chris Dolan created JBRULES-3439:
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             Summary: NPE in AbstractTabuAcceptor.stepTaken
                 Key: JBRULES-3439
                 URL: https://issues.jboss.org/browse/JBRULES-3439
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-planner
    Affects Versions: 5.4.0.Beta2
         Environment: drools-planner-example 5.4.0-SNAPSHOT pulled via Maven on March 29. I believe this corresponds to https://github.com/droolsjbpm/drools-planner/commit/ba38344b7563830eb2a725f78c03be043b1c1f65
            Reporter: Chris Dolan
            Assignee: Geoffrey De Smet


I know this is a weak bug report and I apologize in advance for that...

I'm writing integration tests for my solver configuration. My code seems to work in my GUI (subclass of CommonApp) but it fails under my junit test. I'm quite new to Drools and Planner so I wouldn't be surprised if the root cause is my fault, but I think a NPE is bad news.

{noformat}
2012-03-30 15:26:05,743 INFO  [DefaultSolver.java:172] Solving started: time spend (25), score (-2hard/-26soft), new best score (-2hard/-26soft), random seed (0). - o.d.p.c.s.DefaultSolver
2012-03-30 15:26:05,786 DEBUG [DefaultLocalSearchSolverPhase.java:109]     Step index (0), time spend (68), score (-1hard/-22soft), new best score (-1hard/-22soft), accepted move size (8) for picked step (JobSlot(s2,0) => Job(j1)). - o.d.p.c.l.DefaultLocalSearchSolverPhase
2012-03-30 15:26:05,815 DEBUG [DefaultLocalSearchSolverPhase.java:109]     Step index (1), time spend (97), score (0hard/-8soft), new best score (0hard/-8soft), accepted move size (11) for picked step (JobSlot(s1,0) => Job(j2)). - o.d.p.c.l.DefaultLocalSearchSolverPhase
2012-03-30 15:26:05,831 DEBUG [DefaultLocalSearchSolverPhase.java:109]     Step index (2), time spend (113), score (0hard/-4soft), new best score (0hard/-4soft), accepted move size (13) for picked step (JobSlot(s1,1) => Job(j1)). - o.d.p.c.l.DefaultLocalSearchSolverPhase
2012-03-30 15:26:05,845 DEBUG [DefaultLocalSearchSolverPhase.java:109]     Step index (3), time spend (127), score (0hard/-2soft), new best score (0hard/-2soft), accepted move size (13) for picked step (JobSlot(s2,1) => Job(j2)). - o.d.p.c.l.DefaultLocalSearchSolverPhase


java.lang.NullPointerException
	at org.drools.planner.core.localsearch.decider.acceptor.tabu.AbstractTabuAcceptor.stepTaken(AbstractTabuAcceptor.java:163)
	at org.drools.planner.core.localsearch.decider.DefaultDecider.stepTaken(DefaultDecider.java:167)
	at org.drools.planner.core.localsearch.DefaultLocalSearchSolverPhase.stepTaken(DefaultLocalSearchSolverPhase.java:107)
	at org.drools.planner.core.localsearch.DefaultLocalSearchSolverPhase.solve(DefaultLocalSearchSolverPhase.java:71)
	at org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:181)
	at org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:150)
{noformat}

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