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

[Geoffrey De Smet (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12684211#comment-12684211 ] 

Geoffrey De Smet edited comment on JBRULES-3439 at 4/14/12 8:03 AM:
--------------------------------------------------------------------

Fixed for 5.4.0.Final by throwing a cleared exception message that includes which tabu object had it's hashcode changed.
  https://github.com/droolsjbpm/drools-planner/commit/335a5bcc7a31c45841f7d8f37750e5750a2ad2d9
                
      was (Author: ge0ffrey):
    Fixed for 5.4.0.Final by throwing a cleared exception message that includes which tabu object had it's hashcode changed.
                  
> 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
>            Priority: Critical
>             Fix For: 5.4.0.Final
>
>
> 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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