Posted by Wade Walker on Apr 18, 2016; 12:43am
URL: https://forum.jogamp.org/Access-cl-kernel-preferred-work-group-size-multiple-tp4036591p4036613.html

The fix is done and checked in at https://github.com/WadeWalker/jocl/commit/7a26673570fd77839672d472b04dbd509395de5b. I'll push to the official repos once I do a little more testing. I'll send an unofficial build to the bug reporter to tide him over until the next official release comes out.