Ah that would explain it, since I already had a logs folder and scripts to copy logs there I never noticed it. Duh. Thanks, I knew it was probably...
Sometime as of a few weeks ago my craftbukkit server, which i've been running since July 2012, stopped logging. It just has an empty server.log...
I'm seeing this exact error as well. Server seems to be working fine but the console is overflowing with the above and; 2013-01-14 20:58:37...
Separate names with a comma.