Server hangs after /stop when players are still online

When I do /stop, my server console will not close. It saves and all that, then I have to cmd-opt-esc (open force quit menu) and force quit the console. When I restart it, everything is saved, but the only problem is that force-quitting just does not feel right. I'll edit this if it comes out not saving. I am running a mac OSX Mountain Loin. Thanks.

P.s. It closes normally if there is no one on the server.

CONSOLE OUTPUT:
[11:22:39 INFO]: Stopping server
[11:22:39 INFO]: Saving players
[11:22:39 INFO]: Saving worlds
[11:22:39 INFO]: Saving chunks for level 'New Creative Server Photos'/Overworld
[11:22:40 INFO]: Saving chunks for level 'New Creative Server Photos'/Nether
[11:22:40 INFO]: Saving chunks for level 'New Creative Server Photos'/The End
[11:22:40 INFO]: Stopping server
at the 'Stopping server' part it does nothing else and won't close unless I force quit the console.