Hopper: java.lang.ArrayIndexOutOfBoundsException: -8

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-191127/

Crash:

java.lang.ArrayIndexOutOfBoundsException: -8
	at b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bgl.a(SourceFile:217)
	at bgl.a(SourceFile:184)
	at bfl.a(SourceFile:326)
	at bfe.a(SourceFile:845)

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

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

Time: 9/20/13 4:59 PM
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: -8
	at b.a(SourceFile:330)
	at b.a(SourceFile:317)
	at bgl.a(SourceFile:217)
	at bgl.a(SourceFile:184)
	at bfl.a(SourceFile:326)
	at bfe.a(SourceFile:845)
	at bfe.b(SourceFile:695)
	at atv.S(SourceFile:686)
	at atv.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 bgl.a(SourceFile:217)
	at bgl.a(SourceFile:184)
	at bfl.a(SourceFile:326)
	at bfe.a(SourceFile:845)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdi['12mmh12'/12614, l='MpServer', x=1250129.07, y=34.62, z=1249959.26]]
	Chunk stats: MultiplayerChunkCache: 5
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-189,4,-100), Chunk: (at 3,0,12 in -12,-7; contains blocks -192,0,-112 to -177,255,-97), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 221743 game time, 221743 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: true), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 10 total; [tn['Zombie Pigman'/12615, l='MpServer', x=1250129.69, y=31.00, z=1249962.31], ss['item.item.rottenFlesh'/12672, l='MpServer', x=1250148.66, y=32.13, z=1249966.69], tn['Zombie Pigman'/12621, l='MpServer', x=1250129.54, y=32.00, z=1249953.49], oa['Experience Orb'/12671, l='MpServer', x=40004824.00, y=475.48, z=39998710.00], ss['item.item.swordGold'/12620, l='MpServer', x=1250129.19, y=33.13, z=1249958.59], uh['arrow'/12617, l='MpServer', x=1250133.99, y=33.05, z=1249960.37], tn['Zombie Pigman'/12616, l='MpServer', x=1250130.09, y=33.00, z=1249959.13], bdi['12mmh12'/12614, l='MpServer', x=1250129.07, y=34.62, z=1249959.26], ss['item.item.goldNugget'/12619, l='MpServer', x=1250129.53, y=33.13, z=1249959.25], uh['arrow'/12618, l='MpServer', x=1250131.31, y=33.05, z=1249959.19]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bdd.a(SourceFile:284)
	at atv.b(SourceFile:1761)
	at atv.d(SourceFile:633)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_10, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 157467936 bytes (150 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: 3955 (221480 bytes; 0 MB) allocated, 2177 (121912 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.6.4
	LWJGL: 2.9.0
	OpenGL: Intel(R) G45/G43 Express Chipset GL version 2.1.0 - Build 8.15.10.1872, 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: 1576 (88256 bytes; 0 MB) allocated, 373 (20888 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-191127/12771915/