new Interface() does not work in Nashorn compatibility mode · Issue #542 · oracle/graal (original) (raw)

It is documented to work here: "Nashorn compatibility mode ... "Functionality only available under this flag includes: ... new Interface|AbstractClass(fn|obj)." Java.extend does not work either.

However, it does not work with 1.0.0-rc3.

Command:

vm/Contents/Home/bin/js --js.nashorn-compat=true --jvm bug/extend.js

Source (bug/extend.js):

var System = Java.type("java.lang.System");
System.err.println(typeof(Java.extend));
if (Java.extend) {
    var runnable = new (Java.extend(
        Java.type("java.lang.Runnable"),
        {
            run: function() {
                System.err.println("Running.")
            }
        }
    ))();
    runnable.run();
} else {
    System.err.println("Java.extend not found.");
}

var Runnable = Java.type("java.lang.Runnable");
try {
    var again = new Runnable({
        run: function() {
            System.err.println("Running again.");
        }
    });
    again.run();
} catch (e) {
    System.err.println("Error using new Runnable()");
}

Result:

undefined
Java.extend not found.
Error using new Runnable()

Expected result (jjs):

function
Running.
Running again.