---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 13.12.12 20:01
Description: Ticking memory connection

java.lang.NullPointerException
	at qx.f(SourceFile:451)
	at iv.a(SourceFile:297)
	at ei.a(SourceFile:46)
	at cf.b(SourceFile:55)
	at iv.d(SourceFile:57)
	at iw.b(SourceFile:39)
	at bec.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.r(SourceFile:762)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 12w50a
	Operating System: Windows NT (unknown) (amd64) version 6.2
	Java Version: 1.7.0_02, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 311857832 bytes (297 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 1362 (76272 bytes; 0 MB) allocated, 1103 (61768 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 293 (16408 bytes; 0 MB) allocated, 197 (11032 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['cbhome2003a'/67, l='New World', x=-302,87, y=56,00, z=-260,11]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.