Message8242

As seen in the socket-reboot project, it's necessary to wrap calls to bound methods with a function so that it can be directly used by single method interfaces, eg:

        def workaround_jython_bug_for_bound_methods(_):
            self._notify_selectors()

        future.addListener(workaround_jython_bug_for_bound_methods)

The likely solution is to add a PyMethod#__java__, taking in account being bound or not, comparable to PyFunction#__java__.