Hopper: java.lang.ArrayIndexOutOfBoundsException: 2563

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-83363/

Crash:

java.lang.ArrayIndexOutOfBoundsException: 2563
	at amn.a(SourceFile:159)

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

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 9/6/13 8:37 PM
Description: Comparing biomes

java.lang.ArrayIndexOutOfBoundsException: 152122
	at amn.a(SourceFile:159)
	at amr.a(SourceFile:67)
	at amq.a(SourceFile:13)
	at anc.a(SourceFile:20)
	at amb.a(SourceFile:16)
	at anc.a(SourceFile:20)
	at amw.a(SourceFile:13)
	at anc.a(SourceFile:20)
	at anc.a(SourceFile:20)
	at amx.a(SourceFile:15)
	at amv.a(SourceFile:24)
	at anb.a(SourceFile:23)
	at adw.a(SourceFile:79)
	at adu.<init>(SourceFile:26)
	at adt.a(SourceFile:52)
	at adt.b(SourceFile:61)
	at adw.a(SourceFile:61)
	at aez.a(SourceFile:926)
	at act.a(SourceFile:101)
	at act.a(SourceFile:1046)
	at bho.i(SourceFile:1191)
	at bho.a(SourceFile:787)
	at bho.b(SourceFile:695)
	at awb.V(SourceFile:713)
	at awb.e(SourceFile:642)
	at net.minecraft.client.main.Main.main(SourceFile:103)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at amn.a(SourceFile:159)

-- Biomes being compared --
Details:
	Biome A ID: 152122
	Biome B ID: 38
	Biome A: ~~ERROR~~ ArrayIndexOutOfBoundsException: 152122
	Biome B: aeg@78549e9a
Stacktrace:
	at amn.a(SourceFile:159)
	at amr.a(SourceFile:67)
	at amq.a(SourceFile:13)
	at anc.a(SourceFile:20)
	at amb.a(SourceFile:16)
	at anc.a(SourceFile:20)
	at amw.a(SourceFile:13)
	at anc.a(SourceFile:20)
	at anc.a(SourceFile:20)
	at amx.a(SourceFile:15)
	at amv.a(SourceFile:24)
	at anb.a(SourceFile:23)
	at adw.a(SourceFile:79)
	at adu.<init>(SourceFile:26)
	at adt.a(SourceFile:52)
	at adt.b(SourceFile:61)
	at adw.a(SourceFile:61)
	at aez.a(SourceFile:926)

-- Coordinates of biome request --
Details:
	Location: World: (8,0,8), Chunk: (at 8,0,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Stacktrace:
	at act.a(SourceFile:101)
	at act.a(SourceFile:1046)
	at bho.i(SourceFile:1191)
	at bho.a(SourceFile:787)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bfn['nbishop1999'/164, l='MpServer', x=8.50, y=66.62, z=8.50]]
	Chunk stats: MultiplayerChunkCache: 0, 0
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-33,64,-85), Chunk: (at 15,4,11 in -3,-6; contains blocks -48,0,-96 to -33,255,-81), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 43738 game time, 41923 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: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 1 total; [bfn['nbishop1999'/164, l='MpServer', x=8.50, y=66.62, z=8.50]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer server
Stacktrace:
	at bfi.a(SourceFile:285)
	at awb.b(SourceFile:1813)
	at awb.e(SourceFile:651)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w36b
	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: 335340664 bytes (319 MB) / 426573824 bytes (406 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 10819 (605864 bytes; 0 MB) allocated, 10819 (605864 bytes; 0 MB) used
	IntCache: cache: 1, tcache: 20, allocated: 12, tallocated: 94
	Launched Version: 13w36b
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 7670M GL version 4.2.11764 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: []
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 11 (616 bytes; 0 MB) allocated, 11 (616 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-83363/8315333/