Posted by gouessej on Oct 26, 2015; 7:11pm
URL: https://forum.jogamp.org/JOGL-OpenGL-ES-error-in-NetBeans-tp4035582p4035601.html

The Java heap is managed but the native heap is unmanaged. Overriding the finalizer is rarely useful. You can't call an OpenGL method wherever you want, you must call OpenGL methods on a thread on which the OpenGL context is current.