java.lang.ArrayIndexOutOfBoundsException: -2147483647

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 13-7-16 23:36
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: -2147483647
	at ack.a(SourceFile:223)
	at ack.h(SourceFile:91)
	at aqw.e(SourceFile:529)
	at bfo.a(SourceFile:4227)
	at bfo.p(SourceFile:3641)
	at bfo.b(SourceFile:121)
	at bex.a(SourceFile:160)
	at bfi.a(SourceFile:1131)
	at bfb.a(SourceFile:814)
	at bfb.b(SourceFile:695)
	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 ack.a(SourceFile:223)
	at ack.h(SourceFile:91)
	at aqw.e(SourceFile:529)
	at bfo.a(SourceFile:4227)
	at bfo.p(SourceFile:3641)
	at bfo.b(SourceFile:121)
	at bex.a(SourceFile:160)
	at bfi.a(SourceFile:1131)
	at bfb.a(SourceFile:814)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdf['prosyn'/0, l='MpServer', x=-978,50, y=65,62, z=933,50]]
	Chunk stats: MultiplayerChunkCache: 140
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-973,4,934), Chunk: (at 3,0,6 in -61,58; contains blocks -976,0,928 to -961,255,943), Region: (-2,1; contains chunks -64,32 to -33,63, blocks -1024,0,512 to -513,255,1023)
	Level time: 39 game time, 39 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['prosyn'/0, l='MpServer', x=-978,50, y=65,62, z=933,50]]
	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:633)
	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: 1.7.0_21, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 189359656 bytes (180 MB) / 516575232 bytes (492 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 1 total; -Xmx512M
	AABB Pool Size: 9251 (518056 bytes; 0 MB) allocated, 19 (1064 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: GeForce 8600 GT/PCI/SSE2 GL version 3.0.0, NVIDIA Corporation
	Is Modded: Probably not. Jar signatur