Posted by swilson007 on May 08, 2013; 4:44pm
URL: https://forum.jogamp.org/JOGL2-OpenGL-3-3-tp4029102p4029113.html

Oh, no credit or ownership of that code from me please :)  It's a very direct port of the C++ example at http://www.lighthouse3d.com/cg-topics/code-samples/opengl-3-3-glsl-1-5-sample/
(Note that their site is now throwing a me a server error.  Sigh...)

Regardless, I resisted all urges to change or improve.