Message6648

Take this very simple code: 

    from javax.swing import JFrame

    window = JFrame('Test', 
                    defaultCloseOperation = JFrame.EXIT_ON_CLOSE,
                    size = (800, 600))
    window.visible = True

The created window opens for a few seconds, and then closes. The only way I have found to keep the window open is by adding `while True: pass` after showing it, so it might be something to do with `window` going out of scope and being cleaned up, forcing it to close.

I have also encountered what I believe to be a more complicated manifestation of the same bug, which is best-documented here: http://stackoverflow.com/questions/6991878/why-is-my-file-getting-closed-if-i-dont-do-anything-with-it-for-a-while