Hopper: java.lang.NullPointerException: Ticking memory connection

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-317175/

Crash:

java.lang.NullPointerException: Ticking memory connection
	at aeq.a(SourceFile:55)
	at wy.a(SourceFile:292)
	at yx.a(SourceFile:58)
	at yw.b(SourceFile:117)
	at xv.a(SourceFile:193)
	at mp.a(SourceFile:615)
	at ij.a(SourceFile:32)
	at ij.a(SourceFile:10)
	at ek.a(SourceFile:146)

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// Oops.

Time: 11/10/13 4:44 PM
Description: Ticking memory connection

java.lang.NullPointerException: Ticking memory connection
	at aeq.a(SourceFile:55)
	at wy.a(SourceFile:292)
	at yx.a(SourceFile:58)
	at yw.b(SourceFile:117)
	at xv.a(SourceFile:193)
	at mp.a(SourceFile:615)
	at ij.a(SourceFile:32)
	at ij.a(SourceFile:10)
	at ek.a(SourceFile:146)
	at ml.c(SourceFile:134)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at brh.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kt.run(SourceFile:617)


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

-- Head --
Stacktrace:
	at aeq.a(SourceFile:55)
	at wy.a(SourceFile:292)
	at yx.a(SourceFile:58)
	at yw.b(SourceFile:117)
	at xv.a(SourceFile:193)
	at mp.a(SourceFile:615)
	at ij.a(SourceFile:32)
	at ij.a(SourceFile:10)
	at ek.a(SourceFile:146)

-- Ticking connection --
Details:
	Connection: ek@10b5235
Stacktrace:
	at ml.c(SourceFile:134)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at brh.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kt.run(SourceFile:617)

-- System Details --
Details:
	Minecraft Version: 13w41b
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 45053696 bytes (42 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 2432 (136192 bytes; 0 MB) allocated, 2280 (127680 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 281 (15736 bytes; 0 MB) allocated, 265 (14840 bytes; 0 MB) used
	Player Count: 1 / 8; [mf['TitanMinecraft'/123, l='§2§lUncharted Territory 3 §4§l(for MC 1.6.2+)', x=-0.52, y=143.00, z=-348.89]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-317175/16931137/