Hopper: java.lang.ArrayIndexOutOfBoundsException: 211569

java.lang.ArrayIndexOutOfBoundsException: 211569
	at adv.a(SourceFile:123)
	at agb.a(SourceFile:90)
	at agb.d(SourceFile:193)
	at kc.c(SourceFile:72)
	at kc.d(SourceFile:104)
	at act.e(SourceFile:297)
	at kd.g(SourceFile:231)
	at kd.b(SourceFile:134)
	at net.minecraft.server.MinecraftServer.t(SourceFile:455)
	at net.minecraft.server.MinecraftServer.s(SourceFile:398)
	at bng.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:332)
	at hs.run(SourceFile:575)

---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 9/6/13 11:45 AM
Description: Invalid Biome id

java.lang.ArrayIndexOutOfBoundsException: 2051
	at adv.a(SourceFile:123)
	at agb.a(SourceFile:90)
	at agb.d(SourceFile:193)
	at kc.c(SourceFile:72)
	at kc.d(SourceFile:104)
	at act.e(SourceFile:297)
	at kd.g(SourceFile:231)
	at kd.b(SourceFile:134)
	at net.minecraft.server.MinecraftServer.t(SourceFile:455)
	at net.minecraft.server.MinecraftServer.s(SourceFile:398)
	at bng.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:332)
	at hs.run(SourceFile:575)


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

-- RawBiomeBlock --
Details:
	biomes[] size: 256
	x: 2490
	z: 2506
	w: 10
	h: 10
Stacktrace:
	at adv.a(SourceFile:123)
	at agb.a(SourceFile:90)
	at agb.d(SourceFile:193)

-- Chunk to be generated --
Details:
	Location: 623,627
	Position hash: 2692944495215
	Generator: RandomLevelSource
Stacktrace:
	at kc.c(SourceFile:72)
	at kc.d(SourceFile:104)
	at act.e(SourceFile:297)
	at kd.g(SourceFile:231)
	at kd.b(SourceFile:134)

-- Affected level --
Details:
	Level name: Copy of New World--
	All players: 1 total; [kg['Borduex'/1565, l='Copy of New World--', x=10000.50, y=100.50, z=10000.50]]
	Chunk stats: ServerChunkCache: 1300 Drop: 0
	Level seed: 2784543146886900642
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (132,64,244), Chunk: (at 4,4,4 in 8,15; contains blocks 128,0,240 to 143,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 10472654 game time, 182811 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 101795 (now: false), thunder time: 8446 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.t(SourceFile:455)
	at net.minecraft.server.MinecraftServer.s(SourceFile:398)
	at bng.s(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:332)
	at hs.run(SourceFile:575)

-- System Details --
Details:
	Minecraft Version: 13w36a
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 89476160 bytes (85 MB) / 369037312 bytes (351 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 6720 (376320 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: [com.ibm.icu.text.ArabicShapingException], [gnu.trove.TIntCollection], [gnu.trove.impl.HashFunctions, PrimeFinder], [gnu.trove.impl.hash.THash, TPrimitiveHash, TIntIntHash], [gnu.trove.iterator.TIterator, TAdvancingIterator, TIntIntIterator], [gnu.trove.map.TIntIntMap], [gnu.trove.map.hash.TIntIntHashMap], [gnu.trove.procedure.TIntIntProcedure], [gnu.trove.set.TIntSet]
	IntCache: cache: 8, tcache: 135, allocated: 4, tallocated: 6
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1559 (87304 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [kg['Borduex'/1565, l='Copy of New World--', x=10000.50, y=100.50, z=10000.50]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.