Bug in Jython2.7b4?

I tried to create an account at bugs.jython.org, but the registration
e-mail never arrived.  So, at Frank Wierzbicki's suggestion, I am reporting
my experience here.  I did not observe this behavior on previous releases
of Jython.  My demo program follows.

'''
This program demonstrates that Jython2.7b4 fails to start a JavaFX
Application if:

    1.  We are waiting for a threading.Event object, AND

    2.  This module is imported, rather than invoked as the entry
        point to the Python program.

I think this is an important use case, because it enables me to hide
JavaFX Application-start logic inside of a module and block until
JavaFX initialzation is complete.

I saw this behavior on Ubuntu Linux 11.04 and Windows7, Java 8u31.
'''

import sys
import threading
import javafx.application.Application as Application
import java.lang.Runnable as Runnable
import java.lang.Thread as Thread

javaFXIsReady = threading.Event()

class MyApplication(Application):

    @classmethod
    def main(cls, args):
        MyApplication.launch(cls, args)

    def start(self, primaryStage):
        print 'MyApplication.start() was called.'
        javaFXIsReady.set()

class MyRunnable(Runnable):

    def run(self):
        MyApplication.main(sys.argv)

thread = Thread(MyRunnable())
thread.start()

if __name__ == '__main__':
    print 'The module is the program entry point.'
    print 'So, MyApplication.start() will get called.'
else:
    print 'The module was imported.'
    print 'So, MyApplication.start() will NOT get called.'

javaFXIsReady.wait()

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