Hopper: java.lang.ArrayIndexOutOfBoundsException: 3075

java.lang.ArrayIndexOutOfBoundsException: 3075
	at amm.a(SourceFile:152)
	at amo.a(SourceFile:98)
	at amn.a(SourceFile:13)
	at amz.a(SourceFile:20)
	at ama.a(SourceFile:16)
	at amz.a(SourceFile:20)
	at amt.a(SourceFile:13)
	at amz.a(SourceFile:20)
	at amz.a(SourceFile:20)
	at amu.a(SourceFile:15)
	at ams.a(SourceFile:24)
	at adv.a(SourceFile:120)
	at agb.a(SourceFile:90)
	at agb.d(SourceFile:193)

---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 9/5/13 4:23 PM
Description: Exception generating new chunk

java.lang.ArrayIndexOutOfBoundsException: 1281
	at amm.a(SourceFile:152)
	at amo.a(SourceFile:98)
	at amn.a(SourceFile:13)
	at amz.a(SourceFile:20)
	at ama.a(SourceFile:16)
	at amz.a(SourceFile:20)
	at amt.a(SourceFile:13)
	at amz.a(SourceFile:20)
	at amz.a(SourceFile:20)
	at amu.a(SourceFile:15)
	at ams.a(SourceFile:24)
	at adv.a(SourceFile:120)
	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:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at amm.a(SourceFile:152)
	at amo.a(SourceFile:98)
	at amn.a(SourceFile:13)
	at amz.a(SourceFile:20)
	at ama.a(SourceFile:16)
	at amz.a(SourceFile:20)
	at amt.a(SourceFile:13)
	at amz.a(SourceFile:20)
	at amz.a(SourceFile:20)
	at amu.a(SourceFile:15)
	at ams.a(SourceFile:24)
	at adv.a(SourceFile:120)
	at agb.a(SourceFile:90)
	at agb.d(SourceFile:193)

-- Chunk to be generated --
Details:
	Location: 0,-1
	Position hash: -4294967296
	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: New biome shtuff
	All players: 1 total; [kg['william15598'/82726, l='New biome shtuff', x=10.50, y=50.50, z=10.50]]
	Chunk stats: ServerChunkCache: 952 Drop: 0
	Level seed: -699999423075231478
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (204,64,256), Chunk: (at 12,4,0 in 12,16; contains blocks 192,0,256 to 207,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 18884 game time, 1147 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 30762 (now: false), thunder time: 47999 (now: false)
	Level game mode: Game mode: creative (ID 1). 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_17, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 217752624 bytes (207 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: 4257 (238392 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: 69, allocated: 4, tallocated: 25
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 2442 (136752 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [kg['william15598'/82726, l='New biome shtuff', x=10.50, y=50.50, z=10.50]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.