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sliding puzzle exception for brute force sequential solver #25

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barrybecker4 opened this issue Jul 15, 2017 · 3 comments
Open

sliding puzzle exception for brute force sequential solver #25

barrybecker4 opened this issue Jul 15, 2017 · 3 comments
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@barrybecker4
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The problem seems to only be reproducible when run through webstart.
The stack trace is:

WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.
Exception in thread "Worker Thread" java.lang.StackOverflowError
at scala.collection.immutable.VectorPointer.initFrom$(Vector.scala:690)
at scala.collection.immutable.VectorIterator.initFrom(Vector.scala:586)
at scala.collection.immutable.VectorPointer.initFrom(Vector.scala:688)
at scala.collection.immutable.VectorPointer.initFrom$(Vector.scala:688)
at scala.collection.immutable.VectorIterator.initFrom(Vector.scala:586)
at scala.collection.immutable.Vector.initIterator(Vector.scala:87)
at scala.collection.immutable.Vector.iterator(Vector.scala:94)
at scala.collection.immutable.Vector.iterator(Vector.scala:64)
at scala.collection.IterableLike.foreach(IterableLike.scala:71)
at scala.collection.IterableLike.foreach$(IterableLike.scala:70)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:788)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.$anonfun$calculateManhattan$1(SliderBoard.scala:95)
at scala.collection.immutable.Range.foreach$mVc$sp(Range.scala:156)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.calculateManhattan(SliderBoard.scala:94)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.(SliderBoard.scala:42)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.(SliderBoard.scala:57)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.(SliderBoard.scala:68)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.doMove(SliderBoard.scala:160)
at com.barrybecker4.puzzle.slidingpuzzle.SlidingPuzzleController.transition(SlidingPuzzleController.scala:41)
at com.barrybecker4.puzzle.slidingpuzzle.SlidingPuzzleController.transition(SlidingPuzzleController.scala:23)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:54)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
@barrybecker4
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Just happened in IDE too using the 15 tile puzzle

Exception in thread "Worker Thread" java.lang.StackOverflowError
at scala.Array$.ofDim(Array.scala:220)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.(SliderBoard.scala:57)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.(SliderBoard.scala:68)
at com.barrybecker4.puzzle.slidingpuzzle.model.SliderBoard.doMove(SliderBoard.scala:160)
at com.barrybecker4.puzzle.slidingpuzzle.SlidingPuzzleController.transition(SlidingPuzzleController.scala:41)
at com.barrybecker4.puzzle.slidingpuzzle.SlidingPuzzleController.transition(SlidingPuzzleController.scala:23)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:54)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)
at scala.collection.mutable.ArraySeq.foreach(ArraySeq.scala:74)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.search(SequentialPuzzleSolver.scala:53)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1(SequentialPuzzleSolver.scala:58)
at com.barrybecker4.puzzle.common.solver.SequentialPuzzleSolver.$anonfun$search$1$adapted(SequentialPuzzleSolver.scala:53)

@barrybecker4
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I can work around the problem in the IDE by passing a bigger value for
-Xss1m like -Xss64m
but the main problem is too many recursive calls.
Seems like it will be necessary to rewrite without recursion.

@barrybecker4
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Not using webstart anymore. Increasing Xss is fine for now.

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@barrybecker4