This is a one off conversion I did for the PI as I don't have a PI anymore I don't maintain it for more upto date code use https://github.com/chriscamacho/Jgles2 which should be easily modified to work on the PI
There are just three classes
Jgles2.EGL access to libEGL
Jgles2.GLES2 access to libGLES v2.0
Jgles2.util some platform specific stuff, general utilities etc.
There used to be a C math library wrapped as well, but there was little to be gained from this and there are various Math routines - matrix, quaternion as java versions in the example (test folder)
Its close but there are a few slight differences for convenience
Basically yes - there are a small handful of routines unwrapped that I don't use (contributions welcome) There is a full application demonstrating gimbaless rotation, the library has also been tested using techniques like render to texture.
my email account is codifies with a co uk domain of bedroomcoders, what will we do when spam bots can work that one out...