Hopper: java.lang.ArrayIndexOutOfBoundsException: 382

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-398183/

Crash:

java.lang.ArrayIndexOutOfBoundsException: 382
	at azz.a(SourceFile:473)
	at azz.a(SourceFile:445)
	at bah.a(SourceFile:149)
	at bah.a(SourceFile:123)
	at bah.a(SourceFile:119)
	at bin.a(SourceFile:456)
	at fz.a(SourceFile:38)
	at fz.a(SourceFile:9)
	at el.a(SourceFile:145)
	at biq.e(SourceFile:212)

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

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

Time: 2013-10-18 19:22
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: 305
	at azz.a(SourceFile:473)
	at azz.a(SourceFile:445)
	at bah.a(SourceFile:149)
	at bah.a(SourceFile:123)
	at bah.a(SourceFile:119)
	at bin.a(SourceFile:456)
	at fz.a(SourceFile:38)
	at fz.a(SourceFile:9)
	at el.a(SourceFile:145)
	at biq.e(SourceFile:212)
	at ayw.o(SourceFile:1280)
	at ayw.ad(SourceFile:755)
	at ayw.e(SourceFile:706)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at azz.a(SourceFile:473)
	at azz.a(SourceFile:445)
	at bah.a(SourceFile:149)
	at bah.a(SourceFile:123)
	at bah.a(SourceFile:119)
	at bin.a(SourceFile:456)
	at fz.a(SourceFile:38)
	at fz.a(SourceFile:9)
	at el.a(SourceFile:145)
	at biq.e(SourceFile:212)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [biw['Mr_villox'/53792, l='MpServer', x=-20,80, y=75,62, z=172,53]]
	Chunk stats: MultiplayerChunkCache: 49, 49
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-4,64,176), Chunk: (at 12,4,0 in -1,11; contains blocks -16,0,176 to -1,255,191), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 2703964 game time, 3890614 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 5 total; [biw['Mr_villox'/53792, l='MpServer', x=-20,80, y=75,62, z=172,53], up['Chicken'/140, l='MpServer', x=-15,47, y=18,00, z=138,47], vt['item.item.egg'/53268, l='MpServer', x=-5,34, y=62,13, z=195,97], up['Chicken'/12055, l='MpServer', x=-1,15, y=70,75, z=139,15], vt['item.item.egg'/53757, l='MpServer', x=-1,13, y=70,13, z=139,13]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bir.a(SourceFile:284)
	at ayw.b(SourceFile:1938)
	at ayw.e(SourceFile:720)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w42b
	Operating System: Mac OS X (x86_64) version 10.6.8
	Java Version: 1.6.0_51, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 82238192 bytes (78 MB) / 132153344 bytes (126 MB) up to 1069416448 bytes (1019 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 391 (21896 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 13w42b
	LWJGL: 2.9.1
	OpenGL: NVIDIA GeForce 320M OpenGL Engine GL version 2.1 NVIDIA-1.6.36, NVIDIA Corporation
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1146 (64176 bytes; 0 MB) allocated, 23 (1288 bytes; 0 MB) used
	Anisotropic Filtering: On (2)

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-398183/19100733/