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java.lang.NullPointerException: 	at com.oracle.truffle.api.impl.DefaultVirtualFrame.getSlotIndexChecked(DefaultVirtualFrame.java:162)	at com.oracle.truffle.api.impl.DefaultVirtualFrame.getValue(DefaultVirtualFrame.java:157)	at org.jruby.truffle.core.kernel.KernelNodes$NotMatchNode.notMatch(KernelNodes.java:294)	at org.jruby.truffle.core.kernel.KernelNodesFactory$NotMatchNodeFactory$NotMatchNodeGen.executeBoolean(KernelNodesFactory.java:616)	at org.jruby.truffle.core.kernel.KernelNodesFactory$NotMatchNodeFactory$NotMatchNodeGen.execute(KernelNodesFactory.java:603)	at org.jruby.truffle.language.control.SequenceNode.execute(SequenceNode.java:36)	at org.jruby.truffle.language.methods.ExceptionTranslatingNode.execute(ExceptionTranslatingNode.java:47)	at org.jruby.truffle.language.RubyRootNode.execute(RubyRootNode.java:51)	at com.oracle.truffle.api.impl.DefaultCallTarget.callDirectOrIndirect(DefaultCallTarget.java:63)	at com.oracle.truffle.api.impl.DefaultDirectCallNode.call(DefaultDirectCallNode.java:44)	at org.jruby.truffle.language.dispatch.CachedDispatchNode.call(CachedDispatchNode.java:100)	at org.jruby.truffle.language.dispatch.CachedBoxedDispatchNode.executeDispatch(CachedBoxedDispatchNode.java:90)	at org.jruby.truffle.language.dispatch.UnresolvedDispatchNode.executeDispatch(UnresolvedDispatchNode.java:98)	at org.jruby.truffle.language.dispatch.DispatchHeadNode.dispatch(DispatchHeadNode.java:46)	at org.jruby.truffle.language.dispatch.RubyCallNode.executeWithArgumentsEvaluated(RubyCallNode.java:107)	at org.jruby.truffle.language.dispatch.RubyCallNode.execute(RubyCallNode.java:96)	at org.jruby.truffle.core.cast.BooleanCastNodeGen$BaseNode_.executeValue_(BooleanCastNodeGen.java:171)	at org.jruby.truffle.core.cast.BooleanCastNodeGen$BaseNode_.execute(BooleanCastNodeGen.java:108)	at org.jruby.truffle.core.cast.BooleanCastNodeGen$BaseNode_.executeBoolean1(BooleanCastNodeGen.java:113)	at org.jruby.truffle.core.cast.BooleanCastNodeGen.executeBoolean(BooleanCastNodeGen.java:57)	at org.jruby.truffle.language.control.WhileNode$WhileRepeatingNode.executeRepeating(WhileNode.java:82)	at com.oracle.truffle.api.impl.DefaultLoopNode.executeLoop(DefaultLoopNode.java:46)	at org.jruby.truffle.language.control.WhileNode.execute(WhileNode.java:46)	at org.jruby.truffle.language.methods.CatchBreakNode.execute(CatchBreakNode.java:37)	at org.jruby.truffle.language.RubyNode.executeVoid(RubyNode.java:50)	at org.jruby.truffle.language.control.SequenceNode.execute(SequenceNode.java:33)	at org.jruby.truffle.language.methods.CatchNextNode.execute(CatchNextNode.java:33)	at org.jruby.truffle.language.methods.CatchReturnAsErrorNode.execute(CatchReturnAsErrorNode.java:34)	at org.jruby.truffle.language.methods.CatchRetryAsErrorNode.execute(CatchRetryAsErrorNode.java:34)	at org.jruby.truffle.language.control.SequenceNode.execute(SequenceNode.java:36)	at org.jruby.truffle.language.methods.ExceptionTranslatingNode.execute(ExceptionTranslatingNode.java:47)	at org.jruby.truffle.language.exceptions.TopLevelRaiseHandler.execute(TopLevelRaiseHandler.java:42)	at org.jruby.truffle.language.RubyRootNode.execute(RubyRootNode.java:51)	at com.oracle.truffle.api.impl.DefaultCallTarget.callDirectOrIndirect(DefaultCallTarget.java:63)	at com.oracle.truffle.api.impl.DefaultIndirectCallNode.call(DefaultIndirectCallNode.java:38)	at org.jruby.truffle.language.loader.CodeLoader$DeferredCall.call(CodeLoader.java:110)	at org.jruby.truffle.language.TruffleBootNodes$RunJRubyRootNode.runJRubyRootNode(TruffleBootNodes.java:120)	at org.jruby.truffle.language.TruffleBootNodesFactory$RunJRubyRootNodeFactory$RunJRubyRootNodeGen$RunJRubyRootNodeNode_.execute(TruffleBootNodesFactory.java:342)	at org.jruby.truffle.language.TruffleBootNodesFactory$RunJRubyRootNodeFactory$RunJRubyRootNodeGen$BaseNode_.acceptAndExecute(TruffleBootNodesFactory.java:296)	at com.oracle.truffle.api.dsl.internal.SpecializationNode.uninitialized(SpecializationNode.java:389)	at org.jruby.truffle.language.TruffleBootNodesFactory$RunJRubyRootNodeFactory$RunJRubyRootNodeGen$UninitializedNode_.execute(TruffleBootNodesFactory.java:322)	at org.jruby.truffle.language.TruffleBootNodesFactory$RunJRubyRootNodeFactory$RunJRubyRootNodeGen.execute(TruffleBootNodesFactory.java:255)	at org.jruby.truffle.language.control.SequenceNode.execute(SequenceNode.java:36)	at org.jruby.truffle.language.methods.ExceptionTranslatingNode.execute(ExceptionTranslatingNode.java:47)	at org.jruby.truffle.language.RubyRootNode.execute(RubyRootNode.java:51)	at com.oracle.truffle.api.impl.DefaultCallTarget.callDirectOrIndirect(DefaultCallTarget.java:63)	at com.oracle.truffle.api.impl.DefaultDirectCallNode.call(DefaultDirectCallNode.java:44)	at org.jruby.truffle.language.dispatch.CachedDispatchNode.call(CachedDispatchNode.java:100)	at org.jruby.truffle.language.dispatch.CachedSingletonDispatchNode.executeDispatch(CachedSingletonDispatchNode.java:89)	at org.jruby.truffle.language.dispatch.UnresolvedDispatchNode.executeDispatch(UnresolvedDispatchNode.java:98)	at org.jruby.truffle.language.dispatch.DispatchHeadNode.dispatch(DispatchHeadNode.java:46)	at org.jruby.truffle.language.dispatch.RubyCallNode.executeWithArgumentsEvaluated(RubyCallNode.java:107)	at org.jruby.truffle.language.dispatch.RubyCallNode.execute(RubyCallNode.java:96)	at org.jruby.truffle.language.control.SequenceNode.execute(SequenceNode.java:36)	at org.jruby.truffle.language.methods.CatchNextNode.execute(CatchNextNode.java:33)	at org.jruby.truffle.language.methods.CatchReturnAsErrorNode.execute(CatchReturnAsErrorNode.java:34)	at org.jruby.truffle.language.methods.CatchRetryAsErrorNode.execute(CatchRetryAsErrorNode.java:34)	at org.jruby.truffle.language.RubyRootNode.execute(RubyRootNode.java:51)	at com.oracle.truffle.api.impl.DefaultCallTarget.callDirectOrIndirect(DefaultCallTarget.java:63)	at com.oracle.truffle.api.impl.DefaultDirectCallNode.call(DefaultDirectCallNode.java:44)	at org.jruby.truffle.language.LazyRubyRootNode.execute(LazyRubyRootNode.java:91)	at com.oracle.truffle.api.impl.DefaultCallTarget.callDirectOrIndirect(DefaultCallTarget.java:63)	at com.oracle.truffle.api.impl.DefaultDirectCallNode.call(DefaultDirectCallNode.java:44)	at com.oracle.truffle.api.vm.PolyglotEngine$PolyglotEvalRootNode.executeImpl(PolyglotEngine.java:767)	at com.oracle.truffle.api.vm.PolyglotEngine$PolyglotRootNode.execute(PolyglotEngine.java:729)	at com.oracle.truffle.api.impl.DefaultCallTarget.call(DefaultCallTarget.java:77)	at com.oracle.truffle.api.vm.PolyglotEngine.evalImpl(PolyglotEngine.java:548)	at com.oracle.truffle.api.vm.PolyglotEngine.evalImpl(PolyglotEngine.java:528)	at com.oracle.truffle.api.vm.PolyglotEngine.eval(PolyglotEngine.java:469)	at org.jruby.truffle.JRubyTruffleImpl.execute(JRubyTruffleImpl.java:46)	at org.jruby.Ruby.runFromMain(Ruby.java:563)	at org.jruby.Main.doRunFromMain(Main.java:425)	at org.jruby.Main.internalRun(Main.java:313)	at org.jruby.Main.run(Main.java:242)	at org.jruby.Main.main(Main.java:204)