Hopper: java.lang.IndexOutOfBoundsException: Index: 51, Size: 45

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-190960/

Crash:

java.lang.IndexOutOfBoundsException: Index: 51, Size: 45
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at uy.a(SourceFile:321)
	at bdc.a(SourceFile:295)
	at awy.a(SourceFile:582)
	at awy.a(SourceFile:597)
	at awe.n(SourceFile:149)
	at awe.m(SourceFile:111)

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

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 9/19/13 10:14 PM
Description: Updating screen events

java.lang.IndexOutOfBoundsException: Index: 58, Size: 45
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at uy.a(SourceFile:321)
	at bdc.a(SourceFile:295)
	at awy.a(SourceFile:582)
	at awy.a(SourceFile:597)
	at awe.n(SourceFile:149)
	at awe.m(SourceFile:111)
	at atv.k(SourceFile:1158)
	at atv.S(SourceFile:663)
	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 java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at uy.a(SourceFile:321)
	at bdc.a(SourceFile:295)
	at awy.a(SourceFile:582)
	at awy.a(SourceFile:597)
	at awe.n(SourceFile:149)
	at awe.m(SourceFile:111)

-- Affected screen --
Details:
	Screen name: ~~ERROR~~ NullPointerException: null

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdi['JJ_THE_MASTER'/137, l='MpServer', x=363.26, y=65.62, z=844.91]]
	Chunk stats: MultiplayerChunkCache: 441
	Level seed: 0
	Level generator: ID 02 - largeBiomes, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (362,64,843), Chunk: (at 10,4,11 in 22,52; contains blocks 352,0,832 to 367,255,847), Region: (0,1; contains chunks 0,32 to 31,63, blocks 0,0,512 to 511,255,1023)
	Level time: 454 game time, 454 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: 71 total; [ro['Bat'/4382, l='MpServer', x=423.66, y=19.03, z=809.41], ro['Bat'/4383, l='MpServer', x=424.50, y=17.19, z=796.75], ss['item.tile.rail'/77, l='MpServer', x=413.85, y=21.13, z=863.13], ss['item.tile.rail'/79, l='MpServer', x=420.03, y=21.13, z=867.94], ss['item.tile.rail'/74, l='MpServer', x=409.13, y=21.13, z=864.09], ss['item.tile.rail'/75, l='MpServer', x=408.22, y=21.13, z=864.66], ss['item.tile.rail'/85, l='MpServer', x=423.81, y=22.13, z=883.88], ss['item.tile.rail'/84, l='MpServer', x=425.41, y=22.13, z=883.25], ss['item.tile.rail'/87, l='MpServer', x=422.55, y=22.13, z=884.88], ss['item.tile.rail'/81, l='MpServer', x=422.71, y=22.13, z=877.25], ss['item.tile.rail'/80, l='MpServer', x=420.47, y=21.13, z=866.13], ss['item.tile.rail'/83, l='MpServer', x=420.67, y=22.13, z=873.54], ss['item.tile.rail'/82, l='MpServer', x=422.36, y=22.13, z=873.43], su['entity.MinecartChest.name'/104, l='MpServer', x=442.50, y=25.50, z=904.50], sc['Squid'/187, l='MpServer', x=337.44, y=50.28, z=782.03], sc['Squid'/178, l='MpServer', x=343.54, y=60.34, z=834.68], sc['Squid'/182, l='MpServer', x=332.75, y=58.34, z=814.03], sc['Squid'/183, l='MpServer', x=347.41, y=59.00, z=814.53], sc['Squid'/180, l='MpServer', x=341.50, y=57.09, z=818.84], sc['Squid'/181, l='MpServer', x=346.22, y=55.28, z=818.19], ro['Bat'/252, l='MpServer', x=434.94, y=14.29, z=822.59], tw['Zombie'/248, l='MpServer', x=440.50, y=56.00, z=788.50], tw['Zombie'/249, l='MpServer', x=441.50, y=56.00, z=787.50], bdi['JJ_THE_MASTER'/137, l='MpServer', x=363.26, y=65.62, z=844.91], ro['Bat'/275, l='MpServer', x=407.78, y=28.10, z=829.91], ro['Bat'/273, l='MpServer', x=393.34, y=23.00, z=839.22], ro['Bat'/279, l='MpServer', x=425.69, y=52.60, z=778.41], ro['Bat'/277, l='MpServer', x=409.41, y=26.02, z=826.75], tf['Creeper'/269, l='MpServer', x=301.50, y=34.00, z=770.50], ro['Bat'/346, l='MpServer', x=313.13, y=25.52, z=774.69], ro['Bat'/345, l='MpServer', x=310.31, y=30.84, z=762.66], tw['Zombie'/359, l='MpServer', x=422.50, y=43.00, z=873.50], ro['Bat'/366, l='MpServer', x=443.78, y=16.76, z=869.88], tf['Creeper'/410, l='MpServer', x=438.97, y=35.00, z=918.53], tf['Creeper'/394, l='MpServer', x=428.50, y=35.00, z=797.50], ro['Bat'/387, l='MpServer', x=417.26, y=28.08, z=790.08], tw['Zombie'/435, l='MpServer', x=438.50, y=19.00, z=818.50], tr['Skeleton'/461, l='MpServer', x=432.50, y=29.00, z=810.50], tw['Zombie'/460, l='MpServer', x=364.91, y=28.00, z=832.53], tg['Enderman'/496, l='MpServer', x=434.66, y=36.00, z=790.31], tf['Creeper'/497, l='MpServer', x=440.50, y=36.00, z=792.50], tg['Enderman'/493, l='MpServer', x=436.50, y=36.00, z=790.50], tg['Enderman'/494, l='MpServer', x=435.56, y=36.00, z=790.50], tw['Zombie'/558, l='MpServer', x=364.59, y=27.00, z=802.69], tw['Zombie'/559, l='MpServer', x=358.50, y=27.00, z=805.50], tr['Skeleton'/556, l='MpServer', x=363.50, y=27.00, z=804.50], tr['Skeleton'/557, l='MpServer', x=358.75, y=27.00, z=807.22], tf['Creeper'/560, l='MpServer', x=426.50, y=26.00, z=785.50], tr['Skeleton'/603, l='MpServer', x=327.50, y=30.00, z=770.50], tr['Skeleton'/602, l='MpServer', x=334.16, y=28.00, z=772.59], tt['Spider'/686, l='MpServer', x=444.19, y=15.00, z=774.84], tr['Skeleton'/672, l='MpServer', x=421.50, y=21.00, z=864.50], tt['Spider'/690, l='MpServer', x=440.09, y=15.00, z=775.56], tf['Creeper'/650, l='MpServer', x=389.50, y=21.00, z=870.50], tw['Zombie'/669, l='MpServer', x=423.50, y=21.00, z=868.50], tr['Skeleton'/670, l='MpServer', x=419.50, y=21.00, z=865.50], tr['Skeleton'/671, l='MpServer', x=421.50, y=21.00, z=862.50], ss['item.tile.gravel'/5025, l='MpServer', x=402.75, y=21.13, z=891.66], ss['item.tile.gravel'/5026, l='MpServer', x=402.09, y=21.13, z=889.63], tt['Spider'/747, l='MpServer', x=435.50, y=22.00, z=882.50], tg['Enderman'/745, l='MpServer', x=442.50, y=22.00, z=877.50], tg['Enderman'/744, l='MpServer', x=442.69, y=22.00, z=882.00], tw['Zombie'/739, l='MpServer', x=403.50, y=51.00, z=870.50], tg['Enderman'/743, l='MpServer', x=441.50, y=22.00, z=880.41], tr['Skeleton'/742, l='MpServer', x=441.50, y=15.00, z=885.50], tr['Skeleton'/741, l='MpServer', x=440.50, y=15.00, z=885.50], tr['Skeleton'/740, l='MpServer', x=439.50, y=15.00, z=883.50], tw['Zombie'/765, l='MpServer', x=440.59, y=36.00, z=917.59], tr['Skeleton'/724, l='MpServer', x=418.50, y=26.00, z=770.50], tf['Creeper'/776, l='MpServer', x=405.50, y=45.00, z=872.50], tw['Zombie'/777, l='MpServer', x=395.50, y=46.00, z=848.50]]
	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:628)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_21, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 121316520 bytes (115 MB) / 294862848 bytes (281 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 13294 (744464 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 2, tcache: 0, allocated: 1, tallocated: 71
	Launched Version: 1.6.4
	LWJGL: 2.9.0
	OpenGL: Intel(R) HD Graphics 3000 GL version 3.1.0 - Build 9.17.10.2849, Intel
	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: 2905 (162680 bytes; 0 MB) allocated, 16 (896 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-190960/12506736/