Longs aren't numbers in Java 8u162

[Ryan Berdeen]

I encountered an issue when upgrading from Java 8u66 to 8u162. In 8u66,
java.lang.Integer and java.lang.Long both behaved as JS numbers. In 8u162
(and 10.0.1), Longs behave differently in a way that is breaking my
application.

    function test(n) {
      print(n);
      print(typeof n);
      print(n.hasOwnProperty('x'));
      print();
    }

    test(new java.lang.Integer(0));
    test(new java.lang.Long(0));

In 8u66, this behaved the same for Integer and Long, but in 8u162, typeof
returns "object", and the object doesn't have the expected properties:

    $ jjs longs.js
    0
    number
    false

    0
    object
    longs.js:4 TypeError: n.hasOwnProperty is not a function

In my application, this came up with values passed through to the engine in
bindings.

Is this change intentional? If so, is there a way to revert to the previous
behavior and if not, is there a way to work around it so that I can update?