Debug JavaScript called by Java environment?

[s2310454034]

Hello everybody,

unfortunately I could not find something which resolves/answer a certain issue i currently have with any Google search/searching the discussion topics here.

I would like to implement a Java App, where certain parts of the logic which are quite simple but may change often / should be able to be changed easily are "outsourced" to JavaScript (possibly later TypeScript) files.

Currently this is rather about getting to know the nuances of GraalJs. Currently i am calling my JavaScript code from a Java App like this:

import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Engine;
import org.graalvm.polyglot.Source;
import org.graalvm.polyglot.Value;

import java.io.IOException;
import java.net.URL;

public class App {

    public static void main(String... args) throws IOException {
        URL resourceFile = App.class.getResource("bde.js");
        Source source = Source.newBuilder("js", resourceFile).build();

        try (Context context
             = Context.newBuilder("js")
                .allowAllAccess(true)
                .build()
        )
        {
            Value value = context.eval(source);
        }
    }
}

The called JavaScript is simply a loop printing some output to console:

console.log("Hello JavaScript");
var runs = 1;
while(true) {
    console.log("This is run " + runs);
    runs++;
    //some function for delaying the loop is also called here. Excluded this
}

As this is more of a research for a project my company has in mind, is it possible to debug a JavaScript/TypeScript source which is called like this?

I found topics which state that configuration of some "inspect" option of the engine and/or context is needed. (like this link [ https://stackoverflow.com/questions/68762814/how-to-add-sourcemaps-to-graalvm-js-inspection ] ). When trying this, I get the exception listed below:

Same when trying to add this option to the context builder.

Thanks for any help/answers