Hopper: java.lang.ArrayIndexOutOfBoundsException: -7

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-46002/

Crash:

java.lang.ArrayIndexOutOfBoundsException: -7
	at b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bij.a(SourceFile:77)
	at bij.a(SourceFile:37)
	at azo.a(SourceFile:163)

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

---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 16/08/13 09:04
Description: Rendering screen

java.lang.ArrayIndexOutOfBoundsException: -7
	at b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bij.a(SourceFile:77)
	at bij.a(SourceFile:37)
	at azo.a(SourceFile:163)
	at bfb.b(SourceFile:718)
	at ats.S(SourceFile:686)
	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 b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bij.a(SourceFile:77)
	at bij.a(SourceFile:37)
	at azo.a(SourceFile:163)

-- Screen render details --
Details:
	Screen name: azo
	Mouse location: Scaled: (213, 122). Absolute: (640, 369)
	Screen size: Scaled: (427, 246). Absolute: (1280, 738). Scale factor of 3

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdf['pec989'/205813, l='MpServer', x=37.70, y=65.62, z=-36.70]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (274,4,1289), Chunk: (at 2,0,9 in 17,80; contains blocks 272,0,1280 to 287,255,1295), Region: (0,2; contains chunks 0,64 to 31,95, blocks 0,0,1024 to 511,255,1535)
	Level time: 48793 game time, 48793 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: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 1 total; [bdf['pec989'/205813, l='MpServer', x=37.70, y=65.62, z=-36.70]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer 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: 1.6.0_33, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Sun Microsystems Inc.
	Memory: 1290096 bytes (1 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 4954 (277424 bytes; 0 MB) allocated, 391 (21896 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: Intel 965/963 Graphics Media Accelerator GL version 2.0.0 - 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: 300 (16800 bytes; 0 MB) allocated, 127 (7112 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-46002/3272650/