Hopper: java.lang.ArrayIndexOutOfBoundsException: -8

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-41685/

Crash:

java.lang.ArrayIndexOutOfBoundsException: -8
	at b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bij.a(SourceFile:77)
	at bij.a(SourceFile:37)
	at awx.a(SourceFile:166)
	at awv.a(SourceFile:80)

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

---- Minecraft Crash Report ----
// Don't do that.

Time: 8/15/13 4:07 PM
Description: Rendering screen

java.lang.ArrayIndexOutOfBoundsException: -8
	at b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bij.a(SourceFile:77)
	at bij.a(SourceFile:37)
	at awx.a(SourceFile:166)
	at awv.a(SourceFile:80)
	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 awx.a(SourceFile:166)
	at awv.a(SourceFile:80)

-- Screen render details --
Details:
	Screen name: awx
	Mouse location: Scaled: (160, 120). Absolute: (640, 484)
	Screen size: Scaled: (320, 242). Absolute: (1280, 968). Scale factor of 4

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdf['minerX227'/394994, l='MpServer', x=57.59, y=5.62, z=474.73]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (999,4,936), Chunk: (at 7,0,8 in 62,58; contains blocks 992,0,928 to 1007,255,943), Region: (1,1; contains chunks 32,32 to 63,63, blocks 512,0,512 to 1023,255,1023)
	Level time: 98344 game time, 98344 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: 15 total; [nz['Experience Orb'/395024, l='MpServer', x=187.34, y=4.25, z=400.00], tr['Slime'/394996, l='MpServer', x=34.11, y=5.08, z=542.23], nz['Experience Orb'/395020, l='MpServer', x=184.72, y=4.25, z=375.91], nz['Experience Orb'/395021, l='MpServer', x=183.13, y=4.25, z=376.47], nz['Experience Orb'/395022, l='MpServer', x=186.09, y=4.25, z=396.97], bdf['minerX227'/394994, l='MpServer', x=57.59, y=5.62, z=474.73], nz['Experience Orb'/395023, l='MpServer', x=185.66, y=4.25, z=396.03], sr['item.item.bone'/395004, l='MpServer', x=119.31, y=4.13, z=443.19], ug['arrow'/395005, l='MpServer', x=112.13, y=4.00, z=482.22], nz['Experience Orb'/395009, l='MpServer', x=146.53, y=4.25, z=382.03], nz['Experience Orb'/395010, l='MpServer', x=148.53, y=4.25, z=381.25], nz['Experience Orb'/395011, l='MpServer', x=150.22, y=4.25, z=381.25], sr['item.item.arrow'/395001, l='MpServer', x=116.75, y=4.13, z=438.66], sr['item.item.bone'/395002, l='MpServer', x=117.41, y=4.13, z=438.53], sr['item.item.arrow'/395003, l='MpServer', x=118.81, y=4.13, z=442.94]]
	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 XP (x86) version 5.1
	Java Version: 1.6.0_24, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Sun Microsystems Inc.
	Memory: 1655104 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: 2238 (125328 bytes; 0 MB) allocated, 189 (10584 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: Intel 915G GL version 1.4.0 - Build 7.14.10.4764, 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: 299 (16744 bytes; 0 MB) allocated, 58 (3248 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-41685/3166601/