I'm writing a program in which I want to save information like window
size, window position, is it maximized, etc.  I have it (mostly)
working, but I've noticed one bug that's been annoying me, and I'm not
entirely sure how to fix it.

If the application window is maximized when I leave the application, it
saves the previous size and position (before the maximization) to an
XML file.

The problem is, when I start the application the next time, it is
maximized.  That's good.  When I click the button to "unmaximize" it,
it doesn't always return to the original size and position (which I
have saved).  Sometimes it will be placed at position -4, -4 (the upper
left corner of the screen).

The only thing I can think of is that, because I am firing two
listeners (I'm watching for component resized and component moved)
something isn't registering correctly.  Here's the portion of my code
that is performing the actual resizing.  (It gets called twice if I
perform a maximize because Java sees a maximization as both a resize
and a position change.)

    private void maximize() {
        if (view.getExtendedState() != JFrame.MAXIMIZED_BOTH
                && config.isMaximized()) {
            config.setMaximized(false);
            this.setLocation(config.getWindowPosition());
            this.setSize(config.getWindowSize());
        } else if (view.getExtendedState() == JFrame.MAXIMIZED_BOTH) {
            config.setMaximized(true);
        } else {
            config.setWindowPosition(this.getLocation());
            config.setWindowSize(this.getSize());
        }
    }

Any suggestions would be appreciated.  If I'm doing this entirely
wrong, I'd appreciate knowing that as well.  Thanks!