Processing Forum member seongwook was successful in running Processing including it's P2D/P3D graphics on an ODROID XU4 board, containing Mali-T628 OpenGL ES 3.1 graphics. The necessary support was merged for the Processing version proceeding 3.3.7.

He reported that this change to /etc/X11/xorg.conf was necessary for JOGL to pick up OpenGL ES over OpenGL:

Section "Module"`
    `Disable "glx"`
EndSection`