Hopper: java.lang.ArrayIndexOutOfBoundsException: -1

java.lang.ArrayIndexOutOfBoundsException: -1
	at java.util.ArrayList.elementData(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at beb.a(SourceFile:108)
	at bdd.a(SourceFile:78)
	at beb.a(SourceFile:122)

---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 25/10/13 15:02
Description: Rendering screen

java.lang.ArrayIndexOutOfBoundsException: -1
	at java.util.ArrayList.elementData(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at beb.a(SourceFile:108)
	at bdd.a(SourceFile:78)
	at beb.a(SourceFile:122)
	at bll.b(SourceFile:851)
	at azd.ad(SourceFile:780)
	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.elementData(Unknown Source)
	at java.util.ArrayList.get(Unknown Source)
	at beb.a(SourceFile:108)
	at bdd.a(SourceFile:78)
	at beb.a(SourceFile:122)

-- Screen render details --
Details:
	Screen name: beb
	Mouse location: Scaled: (163, 78). Absolute: (491, 533)
	Screen size: Scaled: (456, 256). Absolute: (1366, 768). Scale factor of 3

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bje['sagethedog'/296, l='MpServer', x=235.70, y=66.62, z=333.22]]
	Chunk stats: MultiplayerChunkCache: 317, 317
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (256,64,262), Chunk: (at 0,4,6 in 16,16; contains blocks 256,0,256 to 271,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 1889092 game time, 2065074 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: 110 total; [wx['Skeleton'/51771, l='MpServer', x=186.50, y=42.00, z=276.50], uq['Bat'/52545, l='MpServer', x=183.93, y=44.94, z=256.57], uq['Bat'/52551, l='MpServer', x=180.14, y=35.84, z=296.09], wx['Skeleton'/48070, l='MpServer', x=256.47, y=52.00, z=283.94], xc['Zombie'/53101, l='MpServer', x=182.50, y=43.00, z=269.50], uq['Bat'/52553, l='MpServer', x=178.59, y=37.38, z=304.55], uq['Bat'/52006, l='MpServer', x=273.19, y=27.00, z=361.82], wx['Skeleton'/56419, l='MpServer', x=172.50, y=40.00, z=313.50], wl['Creeper'/56422, l='MpServer', x=171.00, y=39.00, z=310.56], wl['Creeper'/52832, l='MpServer', x=177.78, y=45.00, z=262.16], xc['Zombie'/56701, l='MpServer', x=196.50, y=15.00, z=313.50], xc['Zombie'/56702, l='MpServer', x=197.50, y=15.00, z=312.50], xc['Zombie'/56703, l='MpServer', x=199.50, y=15.00, z=312.50], uq['Bat'/54747, l='MpServer', x=165.75, y=23.94, z=282.13], wl['Creeper'/54193, l='MpServer', x=277.50, y=44.00, z=273.50], va['Pig'/38, l='MpServer', x=164.50, y=64.00, z=275.16], us['Chicken'/8165, l='MpServer', x=266.78, y=64.00, z=262.47], uq['Bat'/49059, l='MpServer', x=161.53, y=30.10, z=275.25], xc['Zombie'/51490, l='MpServer', x=265.70, y=44.73, z=370.70], va['Pig'/40130, l='MpServer', x=275.50, y=121.00, z=399.03], bje['sagethedog'/296, l='MpServer', x=235.70, y=66.62, z=333.22], va['Pig'/40131, l='MpServer', x=286.50, y=124.00, z=409.50], va['Pig'/68, l='MpServer', x=183.13, y=64.00, z=380.97], va['Pig'/69, l='MpServer', x=188.84, y=64.00, z=365.53], va['Pig'/65, l='MpServer', x=188.38, y=63.00, z=330.84], va['Pig'/66, l='MpServer', x=177.09, y=64.00, z=363.25], uq['Bat'/56358, l='MpServer', x=165.29, y=37.00, z=281.41], xc['Zombie'/54455, l='MpServer', x=170.94, y=23.00, z=271.34], xh['Villager'/100, l='MpServer', x=235.25, y=65.00, z=335.34], va['Pig'/39907, l='MpServer', x=261.69, y=84.00, z=401.50], xh['Villager'/99, l='MpServer', x=235.16, y=65.00, z=320.38], uq['Bat'/56347, l='MpServer', x=188.75, y=13.64, z=260.30], xb['Witch'/54240, l='MpServer', x=245.50, y=42.00, z=354.50], xh['Villager'/115, l='MpServer', x=246.06, y=65.00, z=268.34], xb['Witch'/54241, l='MpServer', x=245.50, y=42.00, z=355.50], xh['Villager'/114, l='MpServer', x=251.50, y=65.00, z=265.72], xh['Villager'/112, l='MpServer', x=246.91, y=65.00, z=268.84], xc['Zombie'/45008, l='MpServer', x=253.75, y=65.00, z=265.84], rc['Experience Orb'/44739, l='MpServer', x=298.72, y=65.25, z=233.38], wx['Skeleton'/46713, l='MpServer', x=224.22, y=62.03, z=328.13], rc['Experience Orb'/44738, l='MpServer', x=296.53, y=64.25, z=234.88], rc['Experience Orb'/44737, l='MpServer', x=298.69, y=64.25, z=239.38], xc['Zombie'/53710, l='MpServer', x=222.50, y=52.00, z=257.50], wl['Creeper'/53711, l='MpServer', x=224.50, y=52.00, z=254.50], uq['Bat'/54657, l='MpServer', x=173.28, y=34.62, z=393.97], us['Chicken'/137, l='MpServer', x=267.53, y=64.00, z=261.81], us['Chicken'/139, l='MpServer', x=267.47, y=64.00, z=262.84], uu['Horse'/138, l='MpServer', x=271.44, y=64.00, z=257.28], vw['item.item.rottenFlesh'/53560, l='MpServer', x=276.50, y=79.13, z=349.30], us['Chicken'/140, l='MpServer', x=268.19, y=64.00, z=262.53], ut['Cow'/143, l='MpServer', x=257.13, y=64.00, z=290.56], ut['Cow'/152, l='MpServer', x=265.84, y=64.00, z=288.06], xh['Villager'/153, l='MpServer', x=257.16, y=65.00, z=320.50], wx['Skeleton'/50496, l='MpServer', x=289.44, y=35.00, z=370.44], xh['Villager'/154, l='MpServer', x=257.09, y=65.00, z=335.44], xo['arrow'/159, l='MpServer', x=270.38, y=81.69, z=359.94], xc['Zombie'/53546, l='MpServer', x=184.50, y=42.00, z=319.50], ut['Cow'/144, l='MpServer', x=265.72, y=64.00, z=292.78], ut['Cow'/145, l='MpServer', x=257.16, y=64.00, z=285.50], ut['Cow'/147, l='MpServer', x=264.50, y=64.00, z=285.16], ut['Cow'/148, l='MpServer', x=258.19, y=64.00, z=291.94], ut['Cow'/149, l='MpServer', x=262.75, y=64.00, z=292.72], ut['Cow'/150, l='MpServer', x=258.41, y=64.00, z=286.09], ut['Cow'/151, l='MpServer', x=265.84, y=64.00, z=285.47], uu['Donkey'/168, l='MpServer', x=273.03, y=64.00, z=256.09], xc['Zombie'/54614, l='MpServer', x=193.50, y=43.00, z=264.50], wl['Creeper'/54615, l='MpServer', x=162.50, y=30.00, z=269.50], xo['arrow'/174, l='MpServer', x=272.50, y=76.94, z=359.72], va['Pig'/40271, l='MpServer', x=307.75, y=105.00, z=391.53], wl['Creeper'/54616, l='MpServer', x=161.50, y=30.00, z=270.50], wl['Creeper'/49937, l='MpServer', x=232.53, y=65.00, z=327.03], xc['Zombie'/53817, l='MpServer', x=280.50, y=30.00, z=392.50], va['Pig'/40272, l='MpServer', x=311.34, y=103.00, z=398.25], wl['Creeper'/47176, l='MpServer', x=208.50, y=63.00, z=349.50], va['Pig'/177, l='MpServer', x=280.13, y=112.00, z=382.34], vw['item.item.rottenFlesh'/53504, l='MpServer', x=231.38, y=64.13, z=332.63], wx['Skeleton'/53354, l='MpServer', x=288.53, y=33.00, z=373.25], wx['Skeleton'/53353, l='MpServer', x=283.50, y=32.00, z=378.50], xc['Zombie'/53352, l='MpServer', x=287.38, y=32.00, z=375.34], wx['Skeleton'/52376, l='MpServer', x=172.28, y=40.00, z=288.88], va['Pig'/38537, l='MpServer', x=181.31, y=69.00, z=404.88], wx['Skeleton'/52377, l='MpServer', x=171.63, y=41.00, z=293.13], wx['Skeleton'/52375, l='MpServer', x=170.84, y=40.00, z=292.69], xc['Zombie'/53350, l='MpServer', x=285.50, y=32.00, z=378.50], wx['Skeleton'/40474, l='MpServer', x=208.69, y=61.86, z=284.84], wx['Skeleton'/53608, l='MpServer', x=165.50, y=34.00, z=359.50], xc['Zombie'/53853, l='MpServer', x=245.50, y=16.00, z=393.50], wl['Creeper'/52904, l='MpServer', x=241.50, y=45.00, z=368.50], uq['Bat'/54322, l='MpServer', x=183.27, y=16.70, z=252.59], wz['Spider'/46329, l='MpServer', x=196.50, y=63.00, z=303.50], xc['Zombie'/51678, l='MpServer', x=235.50, y=41.00, z=378.50], wl['Creeper'/51679, l='MpServer', x=239.50, y=41.00, z=376.50], xc['Zombie'/55505, l='MpServer', x=247.47, y=44.00, z=373.56], xb['Witch'/56052, l='MpServer', x=212.50, y=21.00, z=256.50], xc['Zombie'/55506, l='MpServer', x=245.50, y=44.00, z=374.50], wx['Skeleton'/56051, l='MpServer', x=207.50, y=21.00, z=257.50], wl['Creeper'/53598, l='MpServer', x=306.50, y=82.00, z=389.50], wl['Creeper'/53597, l='MpServer', x=307.50, y=82.00, z=388.50], uq['Bat'/56469, l='MpServer', x=166.15, y=45.65, z=367.31], uq['Bat'/56470, l='MpServer', x=173.81, y=46.39, z=367.06], uq['Bat'/56460, l='MpServer', x=198.51, y=49.79, z=400.79], rc['Experience Orb'/44407, l='MpServer', x=278.88, y=71.25, z=237.28], uq['Bat'/56461, l='MpServer', x=189.27, y=44.79, z=392.76], xc['Zombie'/55762, l='MpServer', x=258.50, y=47.00, z=355.50], rc['Experience Orb'/44406, l='MpServer', x=276.91, y=70.25, z=239.44], xc['Zombie'/55761, l='MpServer', x=261.50, y=47.00, z=351.50], xc['Zombie'/55765, l='MpServer', x=260.50, y=47.00, z=353.50], wl['Creeper'/53136, l='MpServer', x=289.69, y=33.00, z=373.31], xc['Zombie'/55502, l='MpServer', x=256.70, y=42.00, z=378.70], xc['Zombie'/55503, l='MpServer', x=255.85, y=42.01, z=378.70]]
	Retry entities: 0 total; []
	Server brand: vanilla
	Server type: Integrated singleplayer 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: 247393464 bytes (235 MB) / 508035072 bytes (484 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 6029 (337624 bytes; 0 MB) allocated, 1588 (88928 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Launched Version: 1.7.2
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 6320 Graphics        GL version 4.1.10834 Compatibility Profile Context, 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 (UK)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1111 (62216 bytes; 0 MB) allocated, 321 (17976 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)