Hopper: java.lang.IndexOutOfBoundsException: Index: 87, Size: 45

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-466933/

Crash:

java.lang.IndexOutOfBoundsException: Index: 87, Size: 45
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at ye.a(SourceFile:320)
	at biy.a(SourceFile:308)
	at bdd.a(SourceFile:490)
	at bdd.a(SourceFile:505)
	at bcd.l(SourceFile:258)
	at bcd.k(SourceFile:217)

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

---- Minecraft Crash Report ----
// Oops.

Time: 10/25/13 2:43 PM
Description: Updating screen events

java.lang.IndexOutOfBoundsException: Index: 45, Size: 45
	at java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at ye.a(SourceFile:320)
	at biy.a(SourceFile:308)
	at bdd.a(SourceFile:490)
	at bdd.a(SourceFile:505)
	at bcd.l(SourceFile:258)
	at bcd.k(SourceFile:217)
	at azd.o(SourceFile:1303)
	at azd.ad(SourceFile:753)
	at azd.e(SourceFile:704)
	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 java.util.ArrayList.rangeCheck(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at ye.a(SourceFile:320)
	at biy.a(SourceFile:308)
	at bdd.a(SourceFile:490)
	at bdd.a(SourceFile:505)
	at bcd.l(SourceFile:258)
	at bcd.k(SourceFile:217)

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

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bje['Schmittster'/252, l='MpServer', x=-224.97, y=65.62, z=43.08]]
	Chunk stats: MultiplayerChunkCache: 271, 271
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-224,64,148), Chunk: (at 0,4,4 in -14,9; contains blocks -224,0,144 to -209,255,159), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 211395 game time, 1083929 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: 80 total; [wl['Creeper'/1763, l='MpServer', x=-234.50, y=51.00, z=13.50], bje['Schmittster'/252, l='MpServer', x=-224.97, y=65.62, z=43.08], wx['Skeleton'/136, l='MpServer', x=-234.50, y=54.00, z=22.50], wl['Creeper'/139, l='MpServer', x=-221.94, y=53.00, z=70.75], wl['Creeper'/2749, l='MpServer', x=-297.38, y=19.00, z=-6.03], uq['Bat'/138, l='MpServer', x=-231.66, y=48.10, z=42.25], vw['item.item.rottenFlesh'/683, l='MpServer', x=-244.06, y=67.13, z=76.78], ut['Cow'/141, l='MpServer', x=-226.53, y=63.00, z=33.28], ut['Cow'/140, l='MpServer', x=-226.93, y=64.00, z=32.09], wm['Enderman'/2073, l='MpServer', x=-283.84, y=48.00, z=-30.44], wm['Enderman'/2072, l='MpServer', x=-284.69, y=48.00, z=-31.38], xc['Zombie'/557, l='MpServer', x=-240.66, y=38.00, z=-7.63], ut['Cow'/152, l='MpServer', x=-220.47, y=63.00, z=33.31], wl['Creeper'/3005, l='MpServer', x=-258.50, y=37.00, z=20.50], ut['Cow'/153, l='MpServer', x=-225.19, y=63.00, z=33.38], us['Chicken'/154, l='MpServer', x=-218.25, y=68.44, z=34.50], us['Chicken'/155, l='MpServer', x=-216.75, y=68.37, z=36.81], us['Chicken'/156, l='MpServer', x=-216.78, y=68.40, z=34.31], uq['Bat'/1901, l='MpServer', x=-287.48, y=46.42, z=-3.40], us['Chicken'/157, l='MpServer', x=-217.84, y=68.34, z=35.16], uq['Bat'/1902, l='MpServer', x=-261.68, y=43.00, z=-28.73], us['Chicken'/158, l='MpServer', x=-217.78, y=68.51, z=35.73], us['Chicken'/159, l='MpServer', x=-217.19, y=68.56, z=35.19], xc['Zombie'/2602, l='MpServer', x=-229.50, y=30.00, z=7.50], ut['Cow'/150, l='MpServer', x=-225.44, y=64.00, z=32.09], wl['Creeper'/2601, l='MpServer', x=-225.50, y=30.00, z=11.50], ut['Cow'/151, l='MpServer', x=-225.41, y=63.00, z=34.50], wl['Creeper'/1610, l='MpServer', x=-232.56, y=40.00, z=20.03], wx['Skeleton'/2341, l='MpServer', x=-299.56, y=29.00, z=31.06], va['Pig'/172, l='MpServer', x=-192.16, y=64.00, z=124.56], us['Chicken'/162, l='MpServer', x=-218.84, y=68.29, z=36.44], us['Chicken'/161, l='MpServer', x=-216.16, y=68.24, z=34.16], us['Chicken'/160, l='MpServer', x=-216.13, y=68.57, z=36.50], wx['Skeleton'/2585, l='MpServer', x=-233.50, y=37.00, z=100.50], wl['Creeper'/164, l='MpServer', x=-189.59, y=61.00, z=55.00], wx['Skeleton'/1864, l='MpServer', x=-227.50, y=39.00, z=114.50], xc['Zombie'/1865, l='MpServer', x=-228.75, y=35.00, z=123.78], xc['Zombie'/2362, l='MpServer', x=-227.00, y=41.00, z=120.75], uq['Bat'/1518, l='MpServer', x=-186.50, y=27.00, z=-15.22], wx['Skeleton'/2962, l='MpServer', x=-279.50, y=25.00, z=-10.50], xc['Zombie'/2365, l='MpServer', x=-226.13, y=41.00, z=120.34], xc['Zombie'/2364, l='MpServer', x=-224.50, y=41.00, z=123.50], vw['item.item.arrow'/746, l='MpServer', x=-271.13, y=65.13, z=-19.66], wl['Creeper'/2814, l='MpServer', x=-157.50, y=36.00, z=18.50], wl['Creeper'/2129, l='MpServer', x=-282.50, y=18.00, z=64.50], wl['Creeper'/2813, l='MpServer', x=-158.50, y=36.00, z=17.50], vw['item.item.bone'/748, l='MpServer', x=-271.13, y=65.13, z=-19.41], vb['Sheep'/67, l='MpServer', x=-303.78, y=63.00, z=-34.88], wl['Creeper'/2682, l='MpServer', x=-220.50, y=27.00, z=108.50], wy['Slime'/77, l='MpServer', x=-288.65, y=15.57, z=38.69], wl['Creeper'/78, l='MpServer', x=-304.47, y=32.00, z=37.06], va['Pig'/192, l='MpServer', x=-147.53, y=73.00, z=-16.50], us['Chicken'/74, l='MpServer', x=-298.31, y=73.00, z=20.31], va['Pig'/194, l='MpServer', x=-158.03, y=70.00, z=-12.84], wx['Skeleton'/2659, l='MpServer', x=-228.50, y=26.00, z=109.50], wl['Creeper'/1171, l='MpServer', x=-265.50, y=44.00, z=-23.50], wx['Skeleton'/2660, l='MpServer', x=-226.50, y=26.00, z=107.50], wl['Creeper'/2787, l='MpServer', x=-167.69, y=35.00, z=31.00], xc['Zombie'/2666, l='MpServer', x=-284.50, y=48.00, z=-28.50], wl['Creeper'/2399, l='MpServer', x=-228.72, y=38.00, z=2.06], wl['Creeper'/2786, l='MpServer', x=-163.69, y=37.96, z=17.29], wl['Creeper'/2785, l='MpServer', x=-164.91, y=35.00, z=30.78], wy['Slime'/88, l='MpServer', x=-273.59, y=28.00, z=36.31], wz['Spider'/2788, l='MpServer', x=-165.94, y=34.00, z=33.03], wl['Creeper'/3019, l='MpServer', x=-220.62, y=37.00, z=118.50], wl['Creeper'/3018, l='MpServer', x=-221.65, y=37.00, z=118.50], wl['Creeper'/3017, l='MpServer', x=-222.50, y=37.00, z=116.50], uq['Bat'/2413, l='MpServer', x=-291.22, y=17.73, z=2.29], xb['Witch'/2651, l='MpServer', x=-293.84, y=19.00, z=5.72], wl['Creeper'/2895, l='MpServer', x=-271.50, y=24.00, z=-17.50], us['Chicken'/104, l='MpServer', x=-265.59, y=64.00, z=58.44], wl['Creeper'/2896, l='MpServer', x=-271.50, y=24.00, z=-18.50], wl['Creeper'/116, l='MpServer', x=-245.50, y=14.00, z=12.50], uq['Bat'/2416, l='MpServer', x=-288.93, y=18.18, z=0.41], wm['Enderman'/2144, l='MpServer', x=-229.34, y=38.00, z=112.88], wy['Slime'/1692, l='MpServer', x=-272.31, y=34.00, z=63.69], wy['Slime'/124, l='MpServer', x=-253.69, y=43.00, z=123.31], wy['Slime'/123, l='MpServer', x=-245.69, y=40.00, z=101.69], wl['Creeper'/1552, l='MpServer', x=-263.47, y=45.00, z=15.03], uq['Bat'/1318, l='MpServer', x=-270.75, y=47.10, z=-23.25]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Non-integrated multiplayer server
Stacktrace:
	at biz.a(SourceFile:284)
	at azd.b(SourceFile:1951)
	at azd.e(SourceFile:713)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 205261864 bytes (195 MB) / 328925184 bytes (313 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 1953 (109368 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Launched Version: 1.7.2
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 7800 Series GL version 4.2.12422 Compatibility Profile Context 13.152.0.0, 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 (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 296 (16576 bytes; 0 MB) allocated, 20 (1120 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-466933/21520377/