[20:28:59] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: Could not initialize class b
	at net.minecraft.server.MinecraftServer.u(SourceFile:478) ~[minecraft-server.jar:?]
	at jn.u(SourceFile:260) ~[minecraft-server.jar:?]
	at net.minecraft.server.MinecraftServer.t(SourceFile:411) ~[minecraft-server.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:346) [minecraft-server.jar:?]
	at jc.run(SourceFile:582) [minecraft-server.jar:?]
[20:29:00] [Server thread/INFO]: Stopping server
[20:29:00] [Server thread/INFO]: Saving players
[20:29:00] [Server Listen Thread/ERROR]: Exception handling pending connection
java.net.SocketException: Socket closed
	at java.net.PlainSocketImpl.socketAccept(Native Method) ~[?:1.7.0_40]
	at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) ~[?:1.7.0_40]
	at java.net.ServerSocket.implAccept(ServerSocket.java:530) ~[?:1.7.0_40]
	at java.net.ServerSocket.accept(ServerSocket.java:498) ~[?:1.7.0_40]
	at jt.run(SourceFile:66) [minecraft-server.jar:?]
[20:29:00] [Server Listen Thread/INFO]: Closing listening thread
[20:29:00] [Server thread/INFO]: §6OrangeCamaroSS§r left the game
[20:29:00] [Server thread/INFO]: §aZachAttack_4NDP§r left the game
[20:29:00] [Server thread/INFO]: Saving worlds
[20:29:00] [Server thread/INFO]: Saving chunks for level 'amp'/Overworld
[20:29:00] [Server thread/INFO]: Saving chunks for level 'amp'/Nether
[20:29:00] [Server thread/INFO]: Saving chunks for level 'amp'/The End