Hopper: java.lang.ArrayIndexOutOfBoundsException: 151720

java.lang.ArrayIndexOutOfBoundsException: 151720
	at adv.a(SourceFile:193)
	at ako.d(SourceFile:169)
	at ako.a(SourceFile:13)
	at alc.a(SourceFile:217)
	at ala.a(SourceFile:504)
	at akn.<init>(SourceFile:93)
	at akm.b(SourceFile:66)
	at akf.a(SourceFile:29)
	at afz.a(SourceFile:29)
	at agb.d(SourceFile:201)
	at kc.c(SourceFile:72)
	at kc.d(SourceFile:104)
	at act.e(SourceFile:297)
	at act.d(SourceFile:867)
	at hx.a(SourceFile:432)
	at hx.a(SourceFile:365)
	at kg.b(SourceFile:347)
	at oc.z(SourceFile:316)
	at ou.z(SourceFile:167)
	at oc.o_(SourceFile:279)
	at ou.o_(SourceFile:1167)
	at uw.o_(SourceFile:204)
	at kg.h(SourceFile:192)
	at kl.a(SourceFile:195)
	at fe.a(SourceFile:136)
	at cx.b(SourceFile:64)
	at kl.e(SourceFile:63)
	at ko.b(SourceFile:37)
	at bnj.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:481)
	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 blame Dinnerbone.

Time: 9/6/13 3:56 PM
Description: Invalid Biome id

java.lang.ArrayIndexOutOfBoundsException: 151720
	at adv.a(SourceFile:193)
	at ako.d(SourceFile:169)
	at ako.a(SourceFile:13)
	at alc.a(SourceFile:217)
	at ala.a(SourceFile:504)
	at akn.<init>(SourceFile:93)
	at akm.b(SourceFile:66)
	at akf.a(SourceFile:29)
	at afz.a(SourceFile:29)
	at agb.d(SourceFile:201)
	at kc.c(SourceFile:72)
	at kc.d(SourceFile:104)
	at act.e(SourceFile:297)
	at act.d(SourceFile:867)
	at hx.a(SourceFile:432)
	at hx.a(SourceFile:365)
	at kg.b(SourceFile:347)
	at oc.z(SourceFile:316)
	at ou.z(SourceFile:167)
	at oc.o_(SourceFile:279)
	at ou.o_(SourceFile:1167)
	at uw.o_(SourceFile:204)
	at kg.h(SourceFile:192)
	at kl.a(SourceFile:195)
	at fe.a(SourceFile:136)
	at cx.b(SourceFile:64)
	at kl.e(SourceFile:63)
	at ko.b(SourceFile:37)
	at bnj.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:481)
	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:
---------------------------------------------------------------------------------------

-- Layer --
Details:
	Layer: ams@f95bd3
	x: 1134
	z: 6210
	radius: 6
	allowed: [aej@dab355, adw@33c634, aem@80650d]
Stacktrace:
	at adv.a(SourceFile:193)
	at ako.d(SourceFile:169)
	at ako.a(SourceFile:13)
	at alc.a(SourceFile:217)
	at ala.a(SourceFile:504)
	at akn.<init>(SourceFile:93)
	at akm.b(SourceFile:66)

-- Feature being prepared --
Details:
	Is feature chunk: True
	Chunk location: 69,389
	Chunk pos hash: 1670742278213
	Structure type: akm
Stacktrace:
	at akf.a(SourceFile:29)
	at afz.a(SourceFile:29)
	at agb.d(SourceFile:201)

-- Chunk to be generated --
Details:
	Location: 70,392
	Position hash: 1683627180102
	Generator: RandomLevelSource
Stacktrace:
	at kc.c(SourceFile:72)
	at kc.d(SourceFile:104)
	at act.e(SourceFile:297)
	at act.d(SourceFile:867)
	at hx.a(SourceFile:432)
	at hx.a(SourceFile:365)
	at kg.b(SourceFile:347)
	at oc.z(SourceFile:316)
	at ou.z(SourceFile:167)
	at oc.o_(SourceFile:279)
	at ou.o_(SourceFile:1167)
	at uw.o_(SourceFile:204)

-- Player being ticked --
Details:
	Entity Type: null (kg)
	Entity ID: 197970
	Entity Name: blackpantsminer
	Entity's Exact location: 1121.77, 64.20, 6278.56
	Entity's Block location: World: (1121,64,6278), Chunk: (at 1,4,6 in 70,392; contains blocks 1120,0,6272 to 1135,255,6287), Region: (2,12; contains chunks 64,384 to 95,415, blocks 1024,0,6144 to 1535,255,6655)
	Entity's Momentum: 0.00, 0.00, 0.00
Stacktrace:
	at kg.h(SourceFile:192)
	at kl.a(SourceFile:195)
	at fe.a(SourceFile:136)
	at cx.b(SourceFile:64)
	at kl.e(SourceFile:63)

-- Ticking connection --
Details:
	Connection: kl@1bc2814
Stacktrace:
	at ko.b(SourceFile:37)
	at bnj.b(SourceFile:84)
	at net.minecraft.server.MinecraftServer.t(SourceFile:481)
	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), Oracle Corporation
	Memory: 119117040 bytes (113 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: 958 (53648 bytes; 0 MB) allocated, 602 (33712 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: 0, tcache: 0, allocated: 13, tallocated: 136
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 1 / 8; [kg['blackpantsminer'/197970, l='New World', x=1121.77, y=64.20, z=6278.56]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.