Hopper: java.lang.NullPointerException: Ticking player

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-389703/

Crash:

java.lang.NullPointerException: Ticking player
	at abq.a(SourceFile:150)
	at abq.a(SourceFile:203)
	at abm.a(SourceFile:331)
	at xg.k(SourceFile:203)
	at xi.e(SourceFile:430)
	at re.h(SourceFile:1200)
	at xi.h(SourceFile:240)

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

---- Minecraft Crash Report ----
// Don't do that.

Time: 17/10/13 21:10
Description: Ticking player

java.lang.NullPointerException: Ticking player
	at abq.a(SourceFile:150)
	at abq.a(SourceFile:203)
	at abm.a(SourceFile:331)
	at xg.k(SourceFile:203)
	at xi.e(SourceFile:430)
	at re.h(SourceFile:1200)
	at xi.h(SourceFile:240)
	at ml.i(SourceFile:207)
	at mv.a(SourceFile:202)
	at iq.a(SourceFile:137)
	at ir.a(SourceFile:63)
	at el.a(SourceFile:145)
	at mr.c(SourceFile:134)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at bsb.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kx.run(SourceFile:617)


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

-- Head --
Stacktrace:
	at abq.a(SourceFile:150)
	at abq.a(SourceFile:203)
	at abm.a(SourceFile:331)
	at xg.k(SourceFile:203)
	at xi.e(SourceFile:430)
	at re.h(SourceFile:1200)
	at xi.h(SourceFile:240)

-- Player being ticked --
Details:
	Entity Type: null (ml)
	Entity ID: 32
	Entity Name: Socatras8
	Entity's Exact location: -1006,78, 7,92, 357,48
	Entity's Block location: World: (-1007,7,357), Chunk: (at 1,0,5 in -63,22; contains blocks -1008,0,352 to -993,255,367), Region: (-2,0; contains chunks -64,0 to -33,31, blocks -1024,0,0 to -513,255,511)
	Entity's Momentum: 0,00, 0,00, 0,00
Stacktrace:
	at ml.i(SourceFile:207)
	at mv.a(SourceFile:202)
	at iq.a(SourceFile:137)
	at ir.a(SourceFile:63)
	at el.a(SourceFile:145)

-- Ticking connection --
Details:
	Connection: el@5d5122f0
Stacktrace:
	at mr.c(SourceFile:134)
	at net.minecraft.server.MinecraftServer.u(SourceFile:529)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at bsb.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kx.run(SourceFile:617)

-- System Details --
Details:
	Minecraft Version: 13w42a
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_15, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 197454472 bytes (188 MB) / 390004736 bytes (371 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 636 (35616 bytes; 0 MB) allocated, 519 (29064 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 90 (5040 bytes; 0 MB) allocated, 63 (3528 bytes; 0 MB) used
	Player Count: 1 / 8; [ml['Socatras8'/32, l='Snap 1.7', x=-1006,78, y=7,92, z=357,48]]
	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-389703/18837607/