---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 02.05.13 20:45
Description: Ticking memory connection

java.lang.NullPointerException
	at nj.b(SourceFile:72)
	at nj.b(SourceFile:58)
	at ni.a(SourceFile:150)
	at ni.i(SourceFile:139)
	at ta.q(SourceFile:837)
	at jj.a(SourceFile:567)
	at dt.a(SourceFile:36)
	at cj.b(SourceFile:64)
	at jj.d(SourceFile:56)
	at jm.b(SourceFile:37)
	at bhd.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.s(SourceFile:490)
	at net.minecraft.server.MinecraftServer.r(SourceFile:407)
	at bha.r(SourceFile:125)
	at net.minecraft.server.MinecraftServer.run(SourceFile:341)
	at gr.run(SourceFile:584)


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

-- Head --
Stacktrace:
	at nj.b(SourceFile:72)
	at nj.b(SourceFile:58)
	at ni.a(SourceFile:150)
	at ni.i(SourceFile:139)
	at ta.q(SourceFile:837)
	at jj.a(SourceFile:567)
	at dt.a(SourceFile:36)
	at cj.b(SourceFile:64)
	at jj.d(SourceFile:56)

-- Ticking connection --
Details:
	Connection: jj@e0ab9
Stacktrace:
	at jm.b(SourceFile:37)
	at bhd.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.s(SourceFile:490)
	at net.minecraft.server.MinecraftServer.r(SourceFile:407)
	at bha.r(SourceFile:125)
	at net.minecraft.server.MinecraftServer.run(SourceFile:341)
	at gr.run(SourceFile:584)

-- System Details --
Details:
	Minecraft Version: 13w18b
	Operating System: Windows XP (x86) version 5.1
	Java Version: 1.7.0_21, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 109391064 bytes (104 MB) / 299499520 bytes (285 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 4688 (262528 bytes; 0 MB) allocated, 4078 (228368 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 959 (53704 bytes; 0 MB) allocated, 959 (53704 bytes; 0 MB) used
	Player Count: 1 / 8; [je['Tails_D'/469, l='Test World', x=-172,22, y=67,00, z=140,98]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.