Posted by gouessej on
URL: https://forum.jogamp.org/Error-DefaultEDTUtil-class-tp4025181p4025206.html

A code working with GLCanvas might not work anymore with NEWT because of a problem in the threading. For example, this aspect is not handled in the same way in Ardor3D in which I added the support of GLWindow and NewtCanvasAWT. Are you sure you perform all OpenGL calls in the GLEventListener or by using invoke(boolean,GLRunnable)?