Posted by Wade Walker on Apr 01, 2012; 4:59pm
URL: https://forum.jogamp.org/Maintaining-JOGL-tp3875497p3875513.html

There are a few small bits of C code in various places to interface with native libraries. There's also ANTLR grammar description language (similar to Backus-Naur form) for the parsers that automatically create JNI interfaces to OpenGL, GDI, and other native libraries. But the majority of JOGL is straight Java code.