nashorn+jsfunfuzz results

André Bargull andrebargull at googlemail.com
Sat Jun 29 02:06:24 PDT 2013


Nashorn spend last night together with jsfunfuzz, results are below. ;-)

- André



[[Runtime exceptions]] - run the followings commands in this order, 
notice java.lang.ClassCastException twice:

jjs> tryItOut = function(c){try{f = Function(c)}catch(e){return} 
try{rv=f()}catch(e){print(e)}}
function(c){try{f = Function(c)}catch(e){return} 
try{rv=f()}catch(e){print(e)}}
jjs> tryItOut("/*for..in*/for(var window.this in ((/a/gi)({} | 
[,])))return;");
jjs> tryItOut("M:switch(window) { default: M:if(x5 || null) 
{/*for..in*//* nogeckoex bug 349964 */ for  each(var x3 in x4) gc() } }");
jjs> tryItOut("");
jjs> tryItOut("if((y = this)[(\n[[]])]) {{}; } else  if ((eval(\";\", 
x5).constructor = x)) break ;{} else {x = window, __noSuchMethod__ = 
false;gc() }");
jjs> tryItOut("{var x =  '' ; }");
jjs> tryItOut("if(new Boolean(this.__noSuchMethod__ = typeof  '' )) 
{return  '' ;[[1]] } else  if (((new String(new (undefined)(), /x/ 
))[true >= 0/*\n*/])) /*for..in*/L:for(var x in 
((({}).hasOwnProperty)(true)));");
jjs> tryItOut("with({}) { [1,2,3,4].map } ");
jjs> tryItOut("gc()");
java.lang.ClassCastException: java.lang.String cannot be cast to 
jdk.nashorn.internal.runtime.ScriptFunction
jjs> tryItOut("L:with(x, x5; ^=  /x/ ){if(x3-=false) { if 
((this.zzz.zzz)) /a/gi} else 1e4; }");
jjs> tryItOut("if(new (window)( '' , x) < x.x) {1e-81;( /x/g ); } else  
if (new (new Function)(x3 = {}, ((-1)(this, undefined)))) 
{[1,,](functional); }");
java.lang.ClassCastException: java.lang.String cannot be cast to 
jdk.nashorn.internal.runtime.ScriptFunction


[[Compiler errors]]:

jjs> Function("switch([]) { case 7:  }");
Compiling threw: java.lang.VerifyError: Bad type on operand stack
Exception Details:
   Location:
jdk/nashorn/internal/scripts/Script$\^function\_._L1(Ljava/lang/Object;)Ljava/lang/Object; 
@9: invokestatic
   Reason:
     Type 'jdk/nashorn/internal/objects/NativeArray' (current frame, 
stack[0]) is not assignable to '[I'
   Current Frame:
     bci: @9
     flags: { }
     locals: { 'java/lang/Object' }
     stack: { 'jdk/nashorn/internal/objects/NativeArray', integer }
   Bytecode:
     0000000: 04b8 0031 b800 3712 38b8 003c ab00 0000
     0000010: 0000 0014 0000 0001 0000 0007 0000 0014
     0000020: b200 2bb0
   Stackmap Table:
     same_frame(@32)

java.lang.VerifyError: Bad type on operand stack
Exception Details:
   Location:
jdk/nashorn/internal/scripts/Script$\^function\_._L1(Ljava/lang/Object;)Ljava/lang/Object; 
@9: invokestatic
   Reason:
     Type 'jdk/nashorn/internal/objects/NativeArray' (current frame, 
stack[0]) is not assignable to '[I'
   Current Frame:
     bci: @9
     flags: { }
     locals: { 'java/lang/Object' }
     stack: { 'jdk/nashorn/internal/objects/NativeArray', integer }
   Bytecode:
     0000000: 04b8 0031 b800 3712 38b8 003c ab00 0000
     0000010: 0000 0014 0000 0001 0000 0007 0000 0014
     0000020: b200 2bb0
   Stackmap Table:
     same_frame(@32)

     at java.lang.Class.getDeclaredFields0(Native Method)
     at java.lang.Class.privateGetDeclaredFields(Class.java:2367)
     at java.lang.Class.getDeclaredField(Class.java:1902)
     at jdk.nashorn.internal.codegen.Compiler$2.run(Compiler.java:417)
     at jdk.nashorn.internal.codegen.Compiler$2.run(Compiler.java:413)
     at java.security.AccessController.doPrivileged(Native Method)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:413)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:447)
     at jdk.nashorn.internal.runtime.Context.compile(Context.java:806)
     at jdk.nashorn.internal.runtime.Context.eval(Context.java:367)
     at ...


jjs> Function("L: {break L;return; }");
Compiling threw: java.lang.VerifyError: StackMapTable error: bad offset
Exception Details:
   Location:
jdk/nashorn/internal/scripts/Script$jsfunfuzz._L1(Ljdk/nashorn/internal/runtime/ScriptFunction;Ljava/lang/Object;)Ljava/lang/Object; 
@0: aload_0
   Reason:
     Invalid stackmap specification.
   Current Frame:
     bci: @8
     flags: { }
     locals: { 'jdk/nashorn/internal/runtime/ScriptFunction', 
'java/lang/Object', 'jdk/nashorn/internal/runtime/ScriptObject' }
     stack: { }
   Bytecode:
     0000000: 2ab6 0018 4da7 0003
   Stackmap Table:
     append_frame(@8,Object[#53])

java.lang.VerifyError: StackMapTable error: bad offset
Exception Details:
   Location:
jdk/nashorn/internal/scripts/Script$\^function\_._L1(Ljdk/nashorn/internal/runtime/ScriptFunction;Ljava/lang/Object;)Ljava/lang/Object; 
@0: aload_0
   Reason:
     Invalid stackmap specification.
   Current Frame:
     bci: @8
     flags: { }
     locals: { 'jdk/nashorn/internal/runtime/ScriptFunction', 
'java/lang/Object', 'jdk/nashorn/internal/runtime/ScriptObject' }
     stack: { }
   Bytecode:
     0000000: 2ab6 0018 4da7 0003
   Stackmap Table:
     append_frame(@8,Object[#53])

     at java.lang.Class.getDeclaredFields0(Native Method)
     at java.lang.Class.privateGetDeclaredFields(Class.java:2367)
     at java.lang.Class.getDeclaredField(Class.java:1902)
     at jdk.nashorn.internal.codegen.Compiler$2.run(Compiler.java:417)
     at jdk.nashorn.internal.codegen.Compiler$2.run(Compiler.java:413)
     at java.security.AccessController.doPrivileged(Native Method)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:413)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:447)
     at jdk.nashorn.internal.runtime.Context.compile(Context.java:806)
     at jdk.nashorn.internal.runtime.Context.eval(Context.java:367)
     at ...


jjs> Function("return function (x) { return true } ( /x/ ) >> window;");
Compiling threw: java.lang.AssertionError: boolean is not an integer or long
java.lang.AssertionError: boolean is not an integer or long
     at 
jdk.nashorn.internal.codegen.MethodEmitter.popInteger(MethodEmitter.java:269)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.sar(MethodEmitter.java:581)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$26.op(CodeGenerator.java:2799)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$BinaryArith.evaluate(CodeGenerator.java:2618)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterSAR(CodeGenerator.java:2801)
     at 
jdk.nashorn.internal.ir.visitor.NodeOperatorVisitor.enterBinaryNode(NodeOperatorVisitor.java:185)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterBinaryNode(NodeVisitor.java:177)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at ...


jjs> Function("return y % function(q) { return q; }();");
Compiling threw: java.lang.AssertionError: object is not numeric
java.lang.AssertionError: object is not numeric
     at 
jdk.nashorn.internal.codegen.MethodEmitter.popNumeric(MethodEmitter.java:257)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.get2n(MethodEmitter.java:1598)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.rem(MethodEmitter.java:1655)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$24.op(CodeGenerator.java:2760)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$BinaryArith.evaluate(CodeGenerator.java:2618)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterMOD(CodeGenerator.java:2762)
     at 
jdk.nashorn.internal.ir.visitor.NodeOperatorVisitor.enterBinaryNode(NodeOperatorVisitor.java:175)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterBinaryNode(NodeVisitor.java:177)
     at ...


jjs> Function("with(\nnull == (this % {}))( /x/g );");
Compiling threw: java.lang.AssertionError: expecting integer type or 
object for jump, but found double
java.lang.AssertionError: expecting integer type or object for jump, but 
found double
     at 
jdk.nashorn.internal.codegen.MethodEmitter.jump(MethodEmitter.java:1352)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.ifnull(MethodEmitter.java:1386)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.nullCheck(CodeGenerator.java:1473)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterRuntimeNode(CodeGenerator.java:1608)
     at jdk.nashorn.internal.ir.RuntimeNode.accept(RuntimeNode.java:412)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterRuntimeNode(NodeVisitor.java:537)
     at jdk.nashorn.internal.ir.RuntimeNode.accept(RuntimeNode.java:412)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:371)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:352)
     at ...


jjs> Function("/*infloop*/while(((function ()4.)([z1,,], [,,]) - 
true++))switch(1e+81.x) { default: break; \u0009 }");
Compiling threw: java.lang.AssertionError: expecting equivalent types on 
stack but got double and int
java.lang.AssertionError: expecting equivalent types on stack but got 
double and int
     at 
jdk.nashorn.internal.codegen.MethodEmitter.get2n(MethodEmitter.java:1600)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.sub(MethodEmitter.java:1622)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$29.op(CodeGenerator.java:2836)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$BinaryArith.evaluate(CodeGenerator.java:2618)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterSUB(CodeGenerator.java:2838)
     at 
jdk.nashorn.internal.ir.visitor.NodeOperatorVisitor.enterBinaryNode(NodeOperatorVisitor.java:191)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterBinaryNode(NodeVisitor.java:177)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at ...


jjs> Function("try {  } catch(NaN if 
[15,16,17,18].filter(({}).hasOwnProperty, NaN) - ((function(q) { return 
q; })( \"\" ,  \"\" ))) { with({}) { throw NaN; }  } ");
Compiling threw: java.lang.NullPointerException
java.lang.NullPointerException
     at 
jdk.nashorn.internal.codegen.types.Type.getMethodDescriptor(Type.java:161)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.getDynamicSignature(MethodEmitter.java:1691)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.dynamicCall(MethodEmitter.java:1726)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$2.enterAccessNode(CodeGenerator.java:684)
     at jdk.nashorn.internal.ir.AccessNode.accept(AccessNode.java:64)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterCallNode(CodeGenerator.java:582)
     at jdk.nashorn.internal.ir.CallNode.accept(CallNode.java:199)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterCallNode(NodeVisitor.java:217)
     at ...


jjs> Function("try { {} } catch(x) { with({}) throw x; } ");
Compiling threw: java.lang.ArrayIndexOutOfBoundsException
java.lang.ArrayIndexOutOfBoundsException: -1
     at jdk.nashorn.internal.codegen.Label$Stack.pop(Label.java:102)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.popType(MethodEmitter.java:234)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.athrow(MethodEmitter.java:1002)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterThrowNode(CodeGenerator.java:1935)
     at jdk.nashorn.internal.ir.ThrowNode.accept(ThrowNode.java:76)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterWithNode(CodeGenerator.java:2150)
     at jdk.nashorn.internal.ir.WithNode.accept(WithNode.java:68)
     at ...


jjs> Function("L:if((function  x ()3)() + arguments++) {return; } else  
if (new gc()) while(((x2.prop = functional)) && 0){ }");
Compiling threw: java.lang.AssertionError: expecting equivalent types on 
stack but got double and int
java.lang.AssertionError: expecting equivalent types on stack but got 
double and int
     at 
jdk.nashorn.internal.codegen.MethodEmitter.get2(MethodEmitter.java:1576)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.add(MethodEmitter.java:1611)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterNumericAdd(CodeGenerator.java:2339)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterADD(CodeGenerator.java:2351)
     at 
jdk.nashorn.internal.ir.visitor.NodeOperatorVisitor.enterBinaryNode(NodeOperatorVisitor.java:117)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterBinaryNode(NodeVisitor.java:177)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:371)
     at ...


jjs> Function("var x = x -=  '' ");
Compiling threw: java.lang.VerifyError: get long/double overflows locals
Exception Details:
   Location:
jdk/nashorn/internal/scripts/Script$\^function\_._L1(Ljava/lang/Object;)Ljava/lang/Object; 
@0: dload_2
   Reason:
     Local index 2 is invalid
   Bytecode:
     0000000: 280e 675c 4949 b200 2bb0

java.lang.VerifyError: get long/double overflows locals
Exception Details:
   Location:
jdk/nashorn/internal/scripts/Script$\^function\_._L1(Ljava/lang/Object;)Ljava/lang/Object; 
@0: dload_2
   Reason:
     Local index 2 is invalid
   Bytecode:
     0000000: 280e 675c 4949 b200 2bb0

     at java.lang.Class.getDeclaredFields0(Native Method)
     at java.lang.Class.privateGetDeclaredFields(Class.java:2367)
     at java.lang.Class.getDeclaredField(Class.java:1902)
     at jdk.nashorn.internal.codegen.Compiler$2.run(Compiler.java:417)
     at jdk.nashorn.internal.codegen.Compiler$2.run(Compiler.java:413)
     at java.security.AccessController.doPrivileged(Native Method)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:413)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:447)
     at jdk.nashorn.internal.runtime.Context.compile(Context.java:806)
     at jdk.nashorn.internal.runtime.Context.eval(Context.java:367)
     at ...


jjs> Function("return (null != [,,] <= this);");
Compiling threw: java.lang.AssertionError: object is not compatible with 
boolean
java.lang.AssertionError: object is not compatible with boolean
     at 
jdk.nashorn.internal.codegen.MethodEmitter.popType(MethodEmitter.java:236)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.fixParamStack(MethodEmitter.java:1109)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.invoke(MethodEmitter.java:1128)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.invokestatic(MethodEmitter.java:1182)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.nullCheck(CodeGenerator.java:1482)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterRuntimeNode(CodeGenerator.java:1608)
     at jdk.nashorn.internal.ir.RuntimeNode.accept(RuntimeNode.java:412)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterRuntimeNode(NodeVisitor.java:537)
     at jdk.nashorn.internal.ir.RuntimeNode.accept(RuntimeNode.java:412)
     at ...


jjs> Function("/*infloop*/L:for(var x; ([+(function 
(window)[,,])(function(q) { return q; }, -0)].some(new Function)); 
[11,12,13,14].some) {/*infloop*/do {;return this; } while(x); }");
Compiling threw: java.lang.AssertionError: Storing object into 
array<elementType=double>
java.lang.AssertionError: Storing object into array<elementType=double>
     at 
jdk.nashorn.internal.codegen.MethodEmitter.arraystore(MethodEmitter.java:937)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.storeElement(CodeGenerator.java:1188)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.loadArray(CodeGenerator.java:1169)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:1278)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterLiteralNode(CodeGenerator.java:1325)
     at 
jdk.nashorn.internal.ir.LiteralNode$ArrayLiteralNode.accept(LiteralNode.java:801)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterLiteralNode(NodeVisitor.java:457)
     at 
jdk.nashorn.internal.ir.LiteralNode$ArrayLiteralNode.accept(LiteralNode.java:801)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:371)
     at ...


jjs> x= {}
[object Object]
jjs> Function("switch((Math.pow ? x = 1.2e3 : 3)) { default: return; }")
Exception in thread "main" java.lang.AssertionError: int is not 
compatible with object
     at 
jdk.nashorn.internal.codegen.MethodEmitter.popType(MethodEmitter.java:236)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.store(MethodEmitter.java:953)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterSwitchNode(CodeGenerator.java:1878)
     at jdk.nashorn.internal.ir.SwitchNode.accept(SwitchNode.java:104)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)


jjs> Function("try { function (x) /x/  } finally { (function(id) { 
return id }); } ");
Compiling threw: java.lang.ClassFormatError: Duplicate method 
name&signature in class file jdk/nashorn/internal/scripts/Script$jsfunfuzz
java.lang.ClassFormatError: Duplicate method name&signature in class 
file jdk/nashorn/internal/scripts/Script$\^function\_
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:751)
     at 
jdk.nashorn.internal.runtime.ScriptLoader.installClass(ScriptLoader.java:62)
     at 
jdk.nashorn.internal.runtime.Context$ContextCodeInstaller.install(Context.java:92)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:408)
     at jdk.nashorn.internal.codegen.Compiler.install(Compiler.java:447)
     at jdk.nashorn.internal.runtime.Context.compile(Context.java:806)
     at jdk.nashorn.internal.runtime.Context.eval(Context.java:367)
     at jdk.nashorn.internal.objects.Global.directEval(Global.java:703)
     at 
jdk.nashorn.internal.objects.NativeFunction.function(NativeFunction.java:235)
     at ...


jjs> Function("switch(0) { default: break; return; }");
Compiling threw: java.lang.VerifyError: Code generation bug in "_L1": 
likely stack misaligned: java.lang.NullPointerException <function>
java.lang.NullPointerException
     at jdk.internal.org.objectweb.asm.Frame.merge(Frame.java:1305)
     at 
jdk.internal.org.objectweb.asm.MethodWriter.visitMaxs(MethodWriter.java:1382)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.end(MethodEmitter.java:201)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.leaveFunctionNode(CodeGenerator.java:1030)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterFunctionNode(CodeGenerator.java:402)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:284)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:371)
     at ...


jjs> Function("x = 0.1, x\ntrue\n~this");
Compiling threw: java.lang.AssertionError: Only return value on stack 
allowed at return point - depth=2 stack = 
jdk.nashorn.internal.codegen.Label$Stack at 4bd0d62f
java.lang.AssertionError: Only return value on stack allowed at return 
point - depth=2 stack = jdk.nashorn.internal.codegen.Label$Stack at 79d04413
     at 
jdk.nashorn.internal.codegen.MethodEmitter._return(MethodEmitter.java:1295)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterReturnNode(CodeGenerator.java:1438)
     at jdk.nashorn.internal.ir.ReturnNode.accept(ReturnNode.java:90)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterFunctionNode(CodeGenerator.java:402)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:284)
     at ...


jjs> Function("with((function (x)x2)() ^ this){return; }");
Compiling threw: java.lang.AssertionError: object is not an integer or long
java.lang.AssertionError: object is not an integer or long
     at 
jdk.nashorn.internal.codegen.MethodEmitter.popInteger(MethodEmitter.java:269)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.get2i(MethodEmitter.java:1587)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.xor(MethodEmitter.java:542)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$22.op(CodeGenerator.java:2652)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$BinaryArith.evaluate(CodeGenerator.java:2618)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterBIT_XOR(CodeGenerator.java:2654)
     at 
jdk.nashorn.internal.ir.visitor.NodeOperatorVisitor.enterBinaryNode(NodeOperatorVisitor.java:151)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:164)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterBinaryNode(NodeVisitor.java:177)
     at ...


jjs> Function("/*infloop*/for(x = window++~.2.hasOwnProperty(\"x3\"); 
(!([[1]]).apply()); {}) {( /x/g );({}).hasOwnProperty }");
Compiling threw: java.lang.AssertionError: window++ ~ 
0.2.hasOwnProperty("x3") has no type
java.lang.AssertionError: window++ ~ 0.2.hasOwnProperty("x3") has no type
     at jdk.nashorn.internal.ir.Node.getType(Node.java:107)
     at 
jdk.nashorn.internal.codegen.Attr.leaveAssignmentNode(Attr.java:1084)
     at jdk.nashorn.internal.codegen.Attr.leaveASSIGN(Attr.java:1107)
     at 
jdk.nashorn.internal.ir.visitor.NodeOperatorVisitor.leaveBinaryNode(NodeOperatorVisitor.java:205)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:165)
     at jdk.nashorn.internal.ir.ForNode.accept(ForNode.java:92)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at ...


jjs> Function("throw NaN\n~window;");
Compiling threw: java.lang.AssertionError: node NaN ~ window class 
jdk.nashorn.internal.ir.BinaryNode has no symbol! [object] function _L1()
java.lang.AssertionError: node NaN ~ window class 
jdk.nashorn.internal.ir.BinaryNode has no symbol! [object] function _L1()
     at 
jdk.nashorn.internal.codegen.FinalizeTypes.convert(FinalizeTypes.java:787)
     at 
jdk.nashorn.internal.codegen.FinalizeTypes.leaveThrowNode(FinalizeTypes.java:496)
     at jdk.nashorn.internal.ir.ThrowNode.accept(ThrowNode.java:77)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.BinaryNode.accept(BinaryNode.java:165)
     at jdk.nashorn.internal.ir.ExecuteNode.accept(ExecuteNode.java:67)
     at ...


jjs> Function("if(([(this >>> 4.)].map(gc))) x;");
Compiling threw: java.lang.AssertionError: array element type doesn't 
match array type
java.lang.AssertionError: array element type doesn't match array type
     at 
jdk.nashorn.internal.codegen.CodeGenerator.storeElement(CodeGenerator.java:1184)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.loadArray(CodeGenerator.java:1169)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:1278)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterLiteralNode(CodeGenerator.java:1325)
     at 
jdk.nashorn.internal.ir.LiteralNode$ArrayLiteralNode.accept(LiteralNode.java:801)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterDefault(CodeGenerator.java:408)
     at 
jdk.nashorn.internal.ir.visitor.NodeVisitor.enterLiteralNode(NodeVisitor.java:457)
     at 
jdk.nashorn.internal.ir.LiteralNode$ArrayLiteralNode.accept(LiteralNode.java:801)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:371)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.load(CodeGenerator.java:352)
     at ...


jjs> Function("switch(gc()) { case \ntrue: case 1:  }");
Compiling threw: java.lang.ClassCastException: java.lang.Boolean cannot 
be cast to java.lang.Integer
java.lang.ClassCastException: java.lang.Boolean cannot be cast to 
java.lang.Integer
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterSwitchNode(CodeGenerator.java:1811)
     at jdk.nashorn.internal.ir.SwitchNode.accept(SwitchNode.java:104)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator$1.enterFunctionNode(CodeGenerator.java:402)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:284)
     at ...


jjs> Function("if(--) y;");
Compiling threw: java.lang.NullPointerException
java.lang.NullPointerException
     at jdk.nashorn.internal.ir.IfNode.accept(IfNode.java:78)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.ExecuteNode.accept(ExecuteNode.java:67)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at ...


jjs> Function("if((null ^ [1]) !== (this.yoyo(false))) {var NaN, 
x;x\n~[,,z1] }");
Compiling threw: java.lang.AssertionError: stacks 
jdk.nashorn.internal.codegen.Label$Stack at 4918f90f is not equivalent with 
jdk.nashorn.internal.codegen.Label$Stack at 5f9b21a1 at join point
java.lang.AssertionError: stacks 
jdk.nashorn.internal.codegen.Label$Stack at 3a5fcae7 is not equivalent with 
jdk.nashorn.internal.codegen.Label$Stack at 8b6defe at join point
     at 
jdk.nashorn.internal.codegen.MethodEmitter.mergeStackTo(MethodEmitter.java:1522)
     at 
jdk.nashorn.internal.codegen.MethodEmitter.jump(MethodEmitter.java:1355)
     at 
jdk.nashorn.internal.codegen.MethodEmitter._goto(MethodEmitter.java:1486)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterIfNode(CodeGenerator.java:1070)
     at jdk.nashorn.internal.ir.IfNode.accept(IfNode.java:76)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at ...


jjs> Function("try { 4. } catch(x) { function  x4 (y, x5)x } ");
Compiling threw: java.lang.NullPointerException
java.lang.NullPointerException
     at 
jdk.nashorn.internal.codegen.MethodEmitter.convert(MethodEmitter.java:1557)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterVarNode(CodeGenerator.java:2076)
     at jdk.nashorn.internal.ir.VarNode.accept(VarNode.java:125)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at 
jdk.nashorn.internal.codegen.CodeGenerator.enterTryNode(CodeGenerator.java:2013)
     at jdk.nashorn.internal.ir.TryNode.accept(TryNode.java:110)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:136)
     at ...


jjs> Function("return (void ({ set   each (x2)y }));");
Compiling threw: java.lang.AssertionError
java.lang.AssertionError
     at jdk.nashorn.internal.codegen.Attr.enterFunctionBody(Attr.java:276)
     at jdk.nashorn.internal.codegen.Attr.enterBlock(Attr.java:297)
     at jdk.nashorn.internal.ir.Block.accept(Block.java:135)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.FunctionNode.accept(FunctionNode.java:285)
     at 
jdk.nashorn.internal.ir.LexicalContextNode.accept(LexicalContextNode.java:69)
     at jdk.nashorn.internal.ir.PropertyNode.accept(PropertyNode.java:90)
     at jdk.nashorn.internal.ir.Node.accept(Node.java:346)
     at jdk.nashorn.internal.ir.ObjectNode.accept(ObjectNode.java:62)
     at jdk.nashorn.internal.ir.RuntimeNode.accept(RuntimeNode.java:415)
     at ...




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