Hopper: java.lang.ArrayIndexOutOfBoundsException: -16

java.lang.ArrayIndexOutOfBoundsException: -16
	at avv.a(SourceFile:44)
	at bfj.a(SourceFile:312)
	at bfe.b(SourceFile:468)
	at bfe.a(SourceFile:930)

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

Time: 19.09.13 21:25
Description: Unexpected error

java.lang.ArrayIndexOutOfBoundsException: -16
	at avv.a(SourceFile:44)
	at bfj.a(SourceFile:312)
	at bfe.b(SourceFile:468)
	at bfe.a(SourceFile:930)
	at bfe.b(SourceFile:693)
	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 avv.a(SourceFile:44)
	at bfj.a(SourceFile:312)
	at bfe.b(SourceFile:468)
	at bfe.a(SourceFile:930)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdi['lordtobi'/51694, l='MpServer', x=26,53, y=58,62, z=646,01]]
	Chunk stats: MultiplayerChunkCache: 20
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (57,4,652), Chunk: (at 9,0,12 in 3,40; contains blocks 48,0,640 to 63,255,655), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
	Level time: 2501 game time, 2501 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; [bdi['lordtobi'/51694, l='MpServer', x=26,53, y=58,62, z=646,01]]
	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 8 (amd64) version 6.2
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 352799920 bytes (336 MB) / 525008896 bytes (500 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 9254 (518224 bytes; 0 MB) allocated, 21 (1176 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: GeForce GT 620/PCIe/SSE2 GL version 4.3.0, NVIDIA Corporation
	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: 96 (5376 bytes; 0 MB) allocated, 56 (3136 bytes; 0 MB) used