javaextend.js

/*
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 *
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 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 */

var ArrayList = Java.type("java.util.ArrayList")
var ArrayListExtender = Java.extend(ArrayList)
var printSizeInvokedArrayList = new ArrayListExtender() {
    size: function() { print("size invoked!"); }
}
var printAddInvokedArrayList = new ArrayListExtender() {
    add: function(x, y) {
        if(typeof(y) === "undefined") {
            print("add(e) invoked!");
        } else {
            print("add(i, e) invoked!");
        }
    }
};
printSizeInvokedArrayList.size();
printAddInvokedArrayList.add(33, 33);