Using JSON.parse in Java Nashorn

Question

Is it possible to use JSON.parse in Java Nashorn with Java 8? I haven't been able to find anything clear on the subject. I have read that when using JDK9 native json functionality is included but I am using 1.8.

json

[{ "user":"dave", "value":"accounting"},{ "user":"sara", "value":"research"}]

i am invoking a function written in the js

Invocable invocable = (Invocable) engine;
invocable.invokeFunction("myFunc", json);

javascript

var myFunc = function(json) {
    // the json is input from elsewhere I want to be able to JSON.parse this or use a FileWriter and write it back out to a file as json
    JSON.parse(json);

    var f = new File("C:\\output", "log.log");
    var writer = new FileWriter(f, true);

 // problem is it only sees it as a string and doesn't write it like json
    writer.write(JSON.stringify(json));
    writer.write("\r\n");
    writer.close();

}

I want to be able to pass the json from elsewhere into the nashorn js function myFunc, but write it to a file as json. It seems it gets turned into a java object and there is no JSON.parse in this context? Is that correct? Perhaps I am going about this wrong, any advice is appreciated.

You seem to be confusing JavaScript and Java. For Java, you could use something like Gson (from Google) for manipulating JSON data. See -> https://mvnrepository.com/artifact/com.google.code.gson/gson — daddygames, May 14 '19 at 17:20
JavaScript is a client-side scripting language. Java is a server-side programming language. They are not the same thing. See -> https://stackoverflow.com/questions/245062/whats-the-difference-between-javascript-and-java — daddygames, May 14 '19 at 17:22
@daddygames I believe I mentioned/tagged this is in the context of Java Nashorn — Justin, May 14 '19 at 17:26
Doh! I overlooked that tag and in the title. My bad. I am unfamiliar with Nashorn. A search leads me to warnings of it being deprecated in Java 11, if that matters. If you are able to access standard Java libraries, Gson or a similar library may still be the way to go. Good luck! — daddygames, May 14 '19 at 19:24

Using JSON.parse in Java Nashorn

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