Posted by gouessej on May 12, 2019; 9:02pm
URL: https://forum.jogamp.org/JOGL-demo-and-other-apps-show-only-black-canvas-window-tp4039768p4039770.html

Hello

Webstart is dead anyway, it has been deprecated and removed in Java 11. Please try the latest nightly build. Does your system use Mesa? Please provide some detailed information:
http://jogamp.org/wiki/index.php?title=Jogl_FAQ#Detailed_Bug_Information