Posted by gouessej on Feb 18, 2015; 4:37pm
URL: https://forum.jogamp.org/pre9-to-pre11-question-tp4034035p4034038.html

Maybe this tip can work in your case:
http://www.javaworld.com/article/2077590/learn-java/java-tip-87--automate-the-hourglass-cursor.html

If you set the wait cursor just before performing a long task on the AWT EDT, sometimes AWT will try to treat both operations in the same cycle and you won't see your wait cursor.