Hopper: java.lang.IndexOutOfBoundsException: Index: 45, Size: 45

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-85363/

Crash:

java.lang.IndexOutOfBoundsException: Index: 45, Size: 45
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at ux.a(SourceFile:103)
	at ux.a(SourceFile:391)
	at bct.a(SourceFile:817)
	at dw.a(SourceFile:45)
	at cn.b(SourceFile:354)
	at bct.e(SourceFile:98)
	at bdh.c(SourceFile:31)

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

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 13-09-06 12:26
Description: Ticking screen

java.lang.IndexOutOfBoundsException: Index: 45, Size: 45
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at ux.a(SourceFile:103)
	at ux.a(SourceFile:391)
	at bct.a(SourceFile:817)
	at dw.a(SourceFile:45)
	at cn.b(SourceFile:354)
	at bct.e(SourceFile:98)
	at bdh.c(SourceFile:31)
	at ats.k(SourceFile:1173)
	at ats.S(SourceFile:663)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)


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

-- Head --
Stacktrace:
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at ux.a(SourceFile:103)
	at ux.a(SourceFile:391)
	at bct.a(SourceFile:817)
	at dw.a(SourceFile:45)
	at cn.b(SourceFile:354)
	at bct.e(SourceFile:98)
	at bdh.c(SourceFile:31)

-- Affected screen --
Details:
	Screen name: ~~ERROR~~ NullPointerException: null

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdf['jerome343343'/76296, l='MpServer', x=-17,50, y=68,62, z=41,50]]
	Chunk stats: MultiplayerChunkCache: 9
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-19,64,48), Chunk: (at 13,4,0 in -2,3; contains blocks -32,0,48 to -17,255,63), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 5359 game time, 5359 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: adventure (ID 2). Hardcore: false. Cheats: false
	Forced entities: 1 total; [bdf['jerome343343'/76296, l='MpServer', x=-17,50, y=68,62, z=41,50]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at bda.a(SourceFile:284)
	at ats.b(SourceFile:1761)
	at ats.d(SourceFile:628)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.2
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_15, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 43763720 bytes (41 MB) / 83046400 bytes (79 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 7955 (445480 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: Intel Bear Lake B GL version 1.4.0 - Build 8.14.10.1930, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Default
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 25 (1400 bytes; 0 MB) allocated, 10 (560 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-85363/8367851/