Posted by gouessej on Nov 25, 2015; 11:01pm
URL: https://forum.jogamp.org/FontRenderContext-tp4035841p4035848.html

No it's a bug, there is a code path that attempts to use a font render context never assigned, it works when you ask the char width of an already cached character.

Please switch to JOGL 2.3.2. We only maintain the very latest version.