Whats the best way to make the mouse invisible?

Hello!

Does anyone know some smart way to make the mouse invisible? I want to make it invisible over a application of mine.

I have found this:
        Graphics g = img.getGraphics();
        Point hotspot = new Point((int)(16),(int)(16));
        Toolkit tk = Toolkit.getDefaultToolkit();
        Cursor cursor = tk.createCustomCursor(img,hotspot,"JoshyMag");
        jMainFrame.setCursor(cursor);

But is there any otheror better ways to do this?

Best regards
Fredrik