Re: ArrayIndexOutOfBoundsException in GWT Compiler for non-trivial type arg in RPC service parameter

I've now also checked this with GWT 2.8.0 compiled from commit ad8ed35116bf22efdfdcf6984a3a3d79e26ded04 with the following result:

Compiling module gwt.generics.bug.Gwt_generics_bug

   Computing all possible rebind results for 'gwt.generics.bug.client.GreetingService'

      Rebinding gwt.generics.bug.client.GreetingService

         Invoking generator com.google.gwt.user.rebind.rpc.ServiceInterfaceProxyGenerator

            [ERROR] Generator 'com.google.gwt.user.rebind.rpc.ServiceInterfaceProxyGenerator' threw an exception while rebinding 'gwt.generics.bug.client.GreetingService'

java.lang.ArrayIndexOutOfBoundsException: 1

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer.getFlowInfo(TypeParameterExposureComputer.java:420)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer.access$200(TypeParameterExposureComputer.java:40)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer$TypeParameterFlowInfo.getFlowInfo(TypeParameterExposureComputer.java:322)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer$TypeParameterFlowInfo.recordCausesExposure(TypeParameterExposureComputer.java:329)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer$TypeParameterFlowInfo.computeIndirectExposureCauses(TypeParameterExposureComputer.java:269)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer$TypeParameterFlowInfo.initializeExposure(TypeParameterExposureComputer.java:195)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer$TypeParameterFlowInfo.updateFlowInfo(TypeParameterExposureComputer.java:169)

at com.google.gwt.user.rebind.rpc.TypeParameterExposureComputer.computeTypeParameterExposure(TypeParameterExposureComputer.java:398)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.getFlowInfo(SerializableTypeOracleBuilder.java:1373)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.getTypeParameterExposure(SerializableTypeOracleBuilder.java:1006)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkTypeArgument(SerializableTypeOracleBuilder.java:1330)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtype(SerializableTypeOracleBuilder.java:1176)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtypes(SerializableTypeOracleBuilder.java:1263)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java:995)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkTypeArgument(SerializableTypeOracleBuilder.java:1337)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtype(SerializableTypeOracleBuilder.java:1176)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.checkSubtypes(SerializableTypeOracleBuilder.java:1263)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.computeTypeInstantiability(SerializableTypeOracleBuilder.java:995)

at com.google.gwt.user.rebind.rpc.SerializableTypeOracleBuilder.build(SerializableTypeOracleBuilder.java:793)

at com.google.gwt.user.rebind.rpc.ProxyCreator.create(ProxyCreator.java:324)

at com.google.gwt.user.rebind.rpc.ServiceInterfaceProxyGenerator.generateIncrementally(ServiceInterfaceProxyGenerator.java:67)

at com.google.gwt.dev.javac.StandardGeneratorContext.runGeneratorIncrementally(StandardGeneratorContext.java:739)

at com.google.gwt.dev.cfg.RuleGenerateWith.realize(RuleGenerateWith.java:103)

at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:78)

at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:262)

at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:251)

at com.google.gwt.dev.PrecompilationContextCreator$1.getAllPossibleRebindAnswers(PrecompilationContextCreator.java:86)

at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.createStaticRebindExpression(UnifyAst.java:494)

at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.createRebindExpression(UnifyAst.java:464)

at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.handleMagicMethodCall(UnifyAst.java:589)

at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.endVisit(UnifyAst.java:294)

at com.google.gwt.dev.jjs.ast.JMethodCall.traverse(JMethodCall.java:259)

at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)

at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:118)

at com.google.gwt.dev.jjs.ast.JExpressionStatement.traverse(JExpressionStatement.java:42)

at com.google.gwt.dev.jjs.ast.JModVisitor$ListContext.traverse(JModVisitor.java:88)

at com.google.gwt.dev.jjs.ast.JModVisitor.acceptWithInsertRemove(JModVisitor.java:331)

at com.google.gwt.dev.jjs.ast.JBlock.traverse(JBlock.java:92)

at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)

at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:139)

at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:135)

at com.google.gwt.dev.jjs.ast.JMethodBody.traverse(JMethodBody.java:83)

at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)

at com.google.gwt.dev.jjs.ast.JMethod.visitChildren(JMethod.java:787)

at com.google.gwt.dev.jjs.ast.JMethod.traverse(JMethod.java:779)

at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)

at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)

at com.google.gwt.dev.jjs.impl.UnifyAst.mainLoop(UnifyAst.java:1378)

at com.google.gwt.dev.jjs.impl.UnifyAst.exec(UnifyAst.java:876)

at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.unifyJavaAst(JavaToJavaScriptCompiler.java:1444)

at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.constructJavaAst(JavaToJavaScriptCompiler.java:1256)

at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:1176)

at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:256)

at com.google.gwt.dev.Precompile.precompile(Precompile.java:255)

at com.google.gwt.dev.Precompile.precompile(Precompile.java:202)

at com.google.gwt.dev.Precompile.precompile(Precompile.java:143)

at com.google.gwt.dev.Compiler.run(Compiler.java:197)

at com.google.gwt.dev.Compiler.run(Compiler.java:156)

at com.google.gwt.dev.Compiler$1.run(Compiler.java:117)

at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

at com.google.gwt.dev.Compiler.main(Compiler.java:124)

   [ERROR] Errors in 'gwt/generics/bug/client/Gwt_generics_bug.java'

      [ERROR] Line 14: Failed to resolve 'gwt.generics.bug.client.GreetingService' via deferred binding

The problem seems to occur without change (other than a few line numbers being different in the stack trace).

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