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Bug
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Resolution: Duplicate
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Major
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7.10.0.Final
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None
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NEW
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NEW
In tailChainSwapMove, if the targeted planning value doesn’t have a tail chain, the rightEntity is null. The findNewTabu method of EntityTabuAcceptor may return a collection containing a null.
In this case, on the line 104 of AbstractTabuAcceptor.java, the second argument supplied for adjustTabuList method is a collection containing a null. Because null values cannot be added to ArrayDeque, a NullPointerException is thrown out on line 133.
Call stack:
Exception in thread "main" java.lang.NullPointerException
at java.util.ArrayDeque.addLast(ArrayDeque.java:249)
at java.util.ArrayDeque.add(ArrayDeque.java:423)
at org.optaplanner.core.impl.localsearch.decider.acceptor.tabu.AbstractTabuAcceptor.adjustTabuList(AbstractTabuAcceptor.java:133)
at org.optaplanner.core.impl.localsearch.decider.acceptor.tabu.AbstractTabuAcceptor.stepEnded(AbstractTabuAcceptor.java:104)
at org.optaplanner.core.impl.localsearch.decider.LocalSearchDecider.stepEnded(LocalSearchDecider.java:162)
at org.optaplanner.core.impl.localsearch.DefaultLocalSearchPhase.stepEnded(DefaultLocalSearchPhase.java:130)
at org.optaplanner.core.impl.localsearch.DefaultLocalSearchPhase.solve(DefaultLocalSearchPhase.java:93)
at org.optaplanner.core.impl.solver.AbstractSolver.runPhases(AbstractSolver.java:87)
at org.optaplanner.core.impl.solver.DefaultSolver.solve(DefaultSolver.java:191)
at com.xti.App.main(App.java:256)
