I got this crash error, and basically. It made everyone time out, and let no one connect and play... I have had this error a few times and this is when I have to manually restart the server, anyone had this problem before?
http://forums.bukkit.org/threads/troubleshooting-common-problems-with-solution.44590/#post-1291375 :S Lol, this is going to be so helpfull
Actually, I found out my plugin had a bug which made that. If you have the same thing, you must use Bukkit.getScheduler().scheduleAsyncDelayedTask(Plugin p, Runnable r)
Error when your crashes occurs, when is it? At server startup, or random or when? Mine, wierdly. Is sometimes when a player joins! I was looking at the console for the error, and when someone joined it printed aload of errors and crashed :S