Posted by snmvaughan on Aug 05, 2010; 8:52pm
URL: https://forum.jogamp.org/JDesktop-locks-up-tp1020047p1027724.html

Further testing indicates:
1. Internal frames do not have to be overlapping to cause the problem.
2. Both the focused internal frame and the internal frame requesting focus have to be NewtCanvasAWT instances for the problem to occur.
3. All requests made through requestFocusAWT() are made on the AWT event dispatch thread as expected.
4. The problem doesn't occur when the internal frame already has focus because the requestFocusHelper doesn't perform any action.  This can be seen by enabling logging of "java.awt.focus.Component".