Hello, AWT Team. Please review the fix for the issue: http://bugs.sun.com/view_bug.do?bug_id=8015455 The fix is available at: http://cr.openjdk.java.net/~pchelko/8015455/webrev.00/
The SwingDropTarget initializes a SwingTimer to handle autoscroll. This timer was stopped on dragExit and drop. However, if the frame was disposed in some dropTarget listener the timer was never stopped and prevented the AWT application from exiting. With best regards. Petr,