---- Minecraft Crash Report ----
// But it works on my machine.

Time: 02.08.14 20:24
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 5
	at box.a(SourceFile:52)
	at aay.l(SourceFile:208)
	at aay.k(SourceFile:155)
	at xl.bE(SourceFile:450)
	at xk.l(SourceFile:1430)
	at xl.l(SourceFile:316)
	at wn.l(SourceFile:126)
	at abr.l(SourceFile:38)
	at xk.j(SourceFile:1298)
	at xl.j(SourceFile:194)
	at aqh.a(SourceFile:1410)
	at qo.a(SourceFile:601)
	at aqh.g(SourceFile:1388)
	at aqh.i(SourceFile:1281)
	at qo.i(SourceFile:479)
	at net.minecraft.server.MinecraftServer.y(SourceFile:606)
	at net.minecraft.server.MinecraftServer.x(SourceFile:530)
	at cxc.x(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:446)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at box.a(SourceFile:52)
	at aay.l(SourceFile:208)
	at aay.k(SourceFile:155)
	at xl.bE(SourceFile:450)
	at xk.l(SourceFile:1430)
	at xl.l(SourceFile:316)
	at wn.l(SourceFile:126)
	at abr.l(SourceFile:38)
	at xk.j(SourceFile:1298)
	at xl.j(SourceFile:194)
	at aqh.a(SourceFile:1410)
	at qo.a(SourceFile:601)
	at aqh.g(SourceFile:1388)

-- Entity being ticked --
Details:
	Entity Type: Cow (abt)
	Entity ID: 664891
	Entity Name: Cow
	Entity's Exact location: 345,36, 70,00, 357,13
	Entity's Block location: 345,00,70,00,357,00 - World: (345,70,357), Chunk: (at 9,4,5 in 21,22; contains blocks 336,0,352 to 351,255,367), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: -0,05, -0,08, 0,00
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at aqh.i(SourceFile:1281)
	at qo.i(SourceFile:479)

-- Affected level --
Details:
	Level name: Island
	All players: 1 total; [qr['Mr_Caveminer'/2, l='Island', x=377,26, y=73,00, z=352,90]]
	Chunk stats: ServerChunkCache: 1405 Drop: 0
	Level seed: -7422055193804507671
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: -215,00,64,00,-26,00 - World: (-215,64,-26), Chunk: (at 9,4,6 in -14,-2; contains blocks -224,0,-32 to -209,255,-17), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 684279 game time, 966414 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 41242 (now: false), thunder time: 105095 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.y(SourceFile:606)
	at net.minecraft.server.MinecraftServer.x(SourceFile:530)
	at cxc.x(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:446)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 14w31a
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 200987112 bytes (191 MB) / 669937664 bytes (638 MB) up to 2134114304 bytes (2035 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [qr['Mr_Caveminer'/2, l='Island', x=377,26, y=73,00, z=352,90]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.