---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 05/08/14 14:49
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 13
	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 abs.l(SourceFile:58)
	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 abs.l(SourceFile:58)
	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: Chicken (abs)
	Entity ID: 914518
	Entity Name: Chicken
	Entity's Exact location: 716,87, 95,00, 287,56
	Entity's Block location: 716,00,95,00,287,00 - World: (716,95,287), Chunk: (at 12,5,15 in 44,17; contains blocks 704,0,272 to 719,255,287), Region: (1,0; contains chunks 32,0 to 63,31, blocks 512,0,0 to 1023,255,511)
	Entity's Momentum: 0,04, -0,08, 0,06
	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: snapshot underwater
	All players: 1 total; [qr['happ'/223, l='snapshot underwater', x=716,36, y=95,00, z=284,50]]
	Chunk stats: ServerChunkCache: 676 Drop: 0
	Level seed: 2431838463617423241
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: -120,00,64,00,96,00 - World: (-120,64,96), Chunk: (at 8,4,0 in -8,6; contains blocks -128,0,96 to -113,255,111), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 964047 game time, 1053077 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 125816 (now: false), thunder time: 118158 (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 7 (x86) version 6.1
	Java Version: 1.7.0_65, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 145269312 bytes (138 MB) / 487473152 bytes (464 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -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['happ'/223, l='snapshot underwater', x=716,36, y=95,00, z=284,50]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.