java.lang.NullPointerException

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    • java.lang.NullPointerException at hex.ScoreKeeper.fillFrom(ScoreKeeper.java:42) at hex.tree.SharedTree.doScoringAndSaveModel(SharedTree.java:415) at hex.tree.gbm.GBM.access$800(GBM.java:20) at hex.tree.gbm.GBM$GBMDriver.buildModel(GBM.java:138) at hex.tree.SharedTree$Driver.compute2(SharedTree.java:195) at water.H2O$H2OCountedCompleter.compute(H2O.java:698) at jsr166y.CountedCompleter.exec(CountedCompleter.java:429) at jsr166y.ForkJoinTask.doExec(ForkJoinTask.java:263) at jsr166y.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:974) at jsr166y.ForkJoinPool.runWorker(ForkJoinPool.java:1477) at jsr166y.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)
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