Posted by hil23Ak on Mar 16, 2021; 8:32pm
URL: https://forum.jogamp.org/NewtCanvasAWT-does-not-appear-in-Java-11-tp4041028p4041044.html

After more investigation, I determined the issue was the result of 3rd party libraries putting translucent panes/components over the top of the Canvas. Why rendering behavior change from JDK 10 to 11, I do not know.

Ultimately this is a reminder that mixing heavyweight AWT into Swing is quite finicky (but is needed for high performance scenarios like 3d graphics).

Thanks for your help.