Posted by gouessej on Oct 25, 2015; 10:07pm
URL: https://forum.jogamp.org/JOGL-2-0-OpenGL-OpenGL-ES-backend-for-LibGDX-tp4027689p4035589.html

I've just fixed the null pointer dereference:
https://github.com/gouessej/libgdx/commit/0d206f2fb3599c426f784b41ae9469210381597a

The initialization of the audio system probably failed on your machine. Please post the logs.