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up vote 1 down vote favorite

I have the following in a js file:

function serialize() {
return new Uint8Array(1024);
}

I invoke that function with the java scripting api like so:

byte[] bytes = (byte[]) ((Invocable)engine).invokeFunction(SERIALIZE_FUNC);

Which immediately throws the exception: 

javax.script.ScriptException: sun.org.mozilla.javascript.internal.EcmaError: ReferenceError: "Uint8Array" is not defined. (<Unknown source>#1) in <Unknown source> at line number 1
sun.org.mozilla.javascript.internal.EcmaError: ReferenceError: "Uint8Array" is not defined. (<Unknown source>#1)

I dont know much about javascript, but I thought this is how you define an array in JavaScript?

share|improve this question
    
You define an array like this: return [];. –  tieTYT 19 hours ago
    
@tieTYT in javascript? then what is all this about: developer.mozilla.org/en-US/docs/Web/JavaScript/Typed_arrays –  Mark W 19 hours ago
    
Hm, I have a feeling your JavaScript engine simply doesn't support it. Which engine are you using? –  tieTYT 19 hours ago
    
@tieTYT The default engine, RhinoScriptEngine –  Mark W 19 hours ago
    
What version of Java are you running? It may be available in JDK 8. –  Pointy 19 hours ago

1 Answer 1

up vote 0 down vote

Your run time doesn't support typed arrays by the looks of it. Try this instead:

function serialize() {
    return [];
}

or if it needs to be 1024 in length create an empty array of said length like so instead

function serialize() {
    return new Array(1024);
}
share|improve this answer

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