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NPE loading Rails console #1007

@nirvdrum

Description

@nirvdrum

I haven't gotten a reduced test case yet, but just going from JRuby 1.7.4 to 1.7.5-dev (indy disabled in both), I'm seeing an NPE loading a Rails console. The trace looks like:

org.jruby.util.io.EncodingUtils.econvOpenOpts(EncodingUtils.java:553)
org.jruby.RubyIO.makeReadConversion(RubyIO.java:5118)
org.jruby.RubyIO.readAll(RubyIO.java:3211)
org.jruby.RubyIO.read(RubyIO.java:3028)
org.jruby.RubyIO$INVOKER$i$read.call(RubyIO$INVOKER$i$read.gen)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:306)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:136)
org.jruby.ast.CallNoArgNode.interpret(CallNoArgNode.java:60)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.evaluator.ASTInterpreter.INTERPRET_BLOCK(ASTInterpreter.java:112)
org.jruby.runtime.Interpreted19Block.evalBlockBody(Interpreted19Block.java:206)
org.jruby.runtime.Interpreted19Block.yield(Interpreted19Block.java:157)
org.jruby.runtime.Interpreted19Block.yieldSpecific(Interpreted19Block.java:135)
org.jruby.runtime.Block.yieldSpecific(Block.java:120)
org.jruby.ast.YieldOneNode.interpret(YieldOneNode.java:35)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.ReturnNode.interpret(ReturnNode.java:92)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.EnsureNode.interpret(EnsureNode.java:96)
org.jruby.ast.BeginNode.interpret(BeginNode.java:83)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.IfNode.interpret(IfNode.java:116)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:204)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:206)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:336)
org.jruby.runtime.callsite.CachingCallSite.callBlock(CachingCallSite.java:179)
org.jruby.runtime.callsite.CachingCallSite.callIter(CachingCallSite.java:188)
org.jruby.ast.CallOneArgBlockNode.interpret(CallOneArgBlockNode.java:60)
org.jruby.ast.LocalAsgnNode.interpret(LocalAsgnNode.java:123)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:225)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:214)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:346)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:204)
org.jruby.ast.FCallTwoArgNode.interpret(FCallTwoArgNode.java:38)
org.jruby.ast.ReturnNode.interpret(ReturnNode.java:92)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.IfNode.interpret(IfNode.java:116)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:198)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:326)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:170)
org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:139)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:182)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:306)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:136)
org.jruby.ast.CallNoArgNode.interpret(CallNoArgNode.java:60)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:198)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:326)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:170)
org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:139)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:182)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:306)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:136)
org.jruby.ast.CallNoArgNode.interpret(CallNoArgNode.java:60)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.RescueNode.executeBody(RescueNode.java:221)
org.jruby.ast.RescueNode.interpret(RescueNode.java:116)
org.jruby.ast.BeginNode.interpret(BeginNode.java:83)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:139)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:182)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:306)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:136)
org.jruby.ast.CallNoArgNode.interpret(CallNoArgNode.java:60)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.evaluator.ASTInterpreter.INTERPRET_METHOD(ASTInterpreter.java:74)
org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:182)
org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:198)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:326)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:170)
org.jruby.ast.CallOneArgNode.interpret(CallOneArgNode.java:57)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.ast.WhenOneArgNode.whenSlowTest(WhenOneArgNode.java:36)
org.jruby.ast.WhenOneArgNode.when(WhenOneArgNode.java:46)
org.jruby.ast.CaseNode.interpret(CaseNode.java:132)
org.jruby.ast.NewlineNode.interpret(NewlineNode.java:105)
org.jruby.ast.BlockNode.interpret(BlockNode.java:71)
org.jruby.ast.RootNode.interpret(RootNode.java:129)
org.jruby.evaluator.ASTInterpreter.INTERPRET_ROOT(ASTInterpreter.java:121)
org.jruby.Ruby.runInterpreter(Ruby.java:841)
org.jruby.Ruby.loadFile(Ruby.java:2726)
org.jruby.runtime.load.ExternalScript.load(ExternalScript.java:66)
org.jruby.runtime.load.LoadService.tryLoadingLibraryOrScript(LoadService.java:958)
org.jruby.runtime.load.LoadService.smartLoadInternal(LoadService.java:573)
org.jruby.runtime.load.LoadService.requireCommon(LoadService.java:457)
org.jruby.runtime.load.LoadService.require(LoadService.java:421)
org.jruby.RubyKernel.requireCommon(RubyKernel.java:1088)
org.jruby.RubyKernel.require19(RubyKernel.java:1082)
org.jruby.RubyKernel$INVOKER$s$1$0$require19.call(RubyKernel$INVOKER$s$1$0$require19.gen)
org.jruby.internal.runtime.methods.JavaMethod$JavaMethodOneOrNBlock.call(JavaMethod.java:350)
org.jruby.internal.runtime.methods.AliasMethod.call(AliasMethod.java:61)
org.jruby.internal.runtime.methods.AliasMethod.call(AliasMethod.java:61)
org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:326)
org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:170)
$_dot_.script.rails.__file__(./script/rails:6)
$_dot_.script.rails.load(./script/rails)
org.jruby.Ruby.runScript(Ruby.java:814)
org.jruby.Ruby.runScript(Ruby.java:807)
org.jruby.Ruby.runNormally(Ruby.java:676)
org.jruby.Ruby.runFromMain(Ruby.java:525)
org.jruby.Main.doRunFromMain(Main.java:395)
org.jruby.Main.internalRun(Main.java:290)
org.jruby.Main.run(Main.java:217)
org.jruby.Main.main(Main.java:197)

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