Hopper: java.lang.ArrayIndexOutOfBoundsException: 31

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-592628/

Crash:

java.lang.ArrayIndexOutOfBoundsException: 31
	at avm.a(SourceFile:44)
	at bgk.c(SourceFile:150)
	at bgk.a(SourceFile:44)
	at bgk.a(SourceFile:20)

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

---- Minecraft Crash Report ----
// There are four lights!

Time: 11/18/13 5:35 PM
Description: Rendering entity in world

java.lang.ArrayIndexOutOfBoundsException: -30
	at avm.a(SourceFile:44)
	at bgk.c(SourceFile:150)
	at bgk.a(SourceFile:44)
	at bgk.a(SourceFile:20)
	at bga.a(SourceFile:204)
	at bga.a(SourceFile:184)
	at bfa.a(SourceFile:317)
	at bet.a(SourceFile:845)
	at bet.b(SourceFile:695)
	at atn.S(SourceFile:685)
	at atn.d(SourceFile:618)
	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 avm.a(SourceFile:44)
	at bgk.c(SourceFile:150)
	at bgk.a(SourceFile:44)
	at bgk.a(SourceFile:20)

-- Entity being rendered --
Details:
	Entity Type: ItemFrame (oa)
	Entity ID: 21
	Entity Name: entity.ItemFrame.name
	Entity's Exact location: -909.50, 4.50, -281.94
	Entity's Block location: World: (-910,4,-282), Chunk: (at 2,0,6 in -57,-18; contains blocks -912,0,-288 to -897,255,-273), Region: (-2,-1; contains chunks -64,-32 to -33,-1, blocks -1024,0,-512 to -513,255,-1)
	Entity's Momentum: 0.00, 0.00, 0.00

-- Renderer details --
Details:
	Assigned renderer: bgk@89e731
	Location: -71.25,-2.86,-138.35 - World: (-72,-3,-139), Chunk: (at 8,-1,5 in -5,-9; contains blocks -80,0,-144 to -65,255,-129), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Rotation: 180.0
	Delta: 0.50447047
Stacktrace:
	at bga.a(SourceFile:204)
	at bga.a(SourceFile:184)
	at bfa.a(SourceFile:317)
	at bet.a(SourceFile:845)

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bcx['creepermantdp'/195, l='MpServer', x=-838.25, y=7.36, z=-143.59]]
	Chunk stats: MultiplayerChunkCache: 405
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-827,4,-386), Chunk: (at 5,0,14 in -52,-25; contains blocks -832,0,-400 to -817,255,-385), Region: (-2,-1; contains chunks -64,-32 to -33,-1, blocks -1024,0,-512 to -513,255,-1)
	Level time: 7338194 game time, 113900 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: creative (ID 1). Hardcore: false. Cheats: false
	Forced entities: 93 total; [oa['entity.ItemFrame.name'/137, l='MpServer', x=-811.06, y=4.50, z=-258.50], oa['entity.ItemFrame.name'/136, l='MpServer', x=-811.06, y=4.50, z=-259.50], oa['entity.ItemFrame.name'/139, l='MpServer', x=-811.06, y=4.50, z=-257.50], oa['entity.ItemFrame.name'/138, l='MpServer', x=-811.06, y=4.50, z=-258.50], oa['entity.ItemFrame.name'/141, l='MpServer', x=-809.94, y=5.50, z=-257.50], oa['entity.ItemFrame.name'/140, l='MpServer', x=-809.94, y=6.50, z=-257.50], oa['entity.ItemFrame.name'/143, l='MpServer', x=-809.94, y=6.50, z=-258.50], oa['entity.ItemFrame.name'/142, l='MpServer', x=-809.94, y=5.50, z=-258.50], oa['entity.ItemFrame.name'/129, l='MpServer', x=-811.06, y=6.50, z=-258.50], oi['Painting'/71, l='MpServer', x=-836.50, y=9.50, z=-231.06], oa['entity.ItemFrame.name'/128, l='MpServer', x=-811.06, y=6.50, z=-259.50], oi['Painting'/70, l='MpServer', x=-834.00, y=9.00, z=-231.06], oa['entity.ItemFrame.name'/131, l='MpServer', x=-811.06, y=6.50, z=-256.50], oi['Painting'/69, l='MpServer', x=-838.50, y=9.50, z=-237.94], oa['entity.ItemFrame.name'/130, l='MpServer', x=-811.06, y=6.50, z=-257.50], oa['entity.ItemFrame.name'/133, l='MpServer', x=-811.06, y=5.50, z=-257.50], oa['entity.ItemFrame.name'/132, l='MpServer', x=-811.06, y=5.50, z=-256.50], oi['Painting'/74, l='MpServer', x=-835.50, y=9.50, z=-231.06], oa['entity.ItemFrame.name'/135, l='MpServer', x=-811.06, y=5.50, z=-259.50], oi['Painting'/73, l='MpServer', x=-834.50, y=10.50, z=-231.06], oa['entity.ItemFrame.name'/134, l='MpServer', x=-811.06, y=5.50, z=-258.50], oi['Painting'/72, l='MpServer', x=-835.50, y=10.50, z=-231.06], oa['entity.ItemFrame.name'/152, l='MpServer', x=-804.06, y=6.50, z=-256.50], oa['entity.ItemFrame.name'/153, l='MpServer', x=-804.06, y=5.50, z=-258.50], oa['entity.ItemFrame.name'/155, l='MpServer', x=-811.06, y=6.50, z=-255.50], oa['entity.ItemFrame.name'/21, l='MpServer', x=-909.50, y=4.50, z=-281.94], oa['entity.ItemFrame.name'/156, l='MpServer', x=-811.06, y=6.50, z=-254.50], oa['entity.ItemFrame.name'/157, l='MpServer', x=-811.06, y=5.50, z=-255.50], oa['entity.ItemFrame.name'/158, l='MpServer', x=-811.06, y=4.50, z=-255.50], oa['entity.ItemFrame.name'/22, l='MpServer', x=-908.50, y=4.50, z=-281.94], oa['entity.ItemFrame.name'/159, l='MpServer', x=-811.06, y=4.50, z=-254.50], oa['entity.ItemFrame.name'/144, l='MpServer', x=-804.06, y=5.50, z=-259.50], oa['entity.ItemFrame.name'/145, l='MpServer', x=-809.94, y=5.50, z=-259.50], oa['entity.ItemFrame.name'/146, l='MpServer', x=-811.06, y=4.50, z=-256.50], oa['entity.ItemFrame.name'/147, l='MpServer', x=-814.06, y=4.50, z=-256.50], oa['entity.ItemFrame.name'/148, l='MpServer', x=-814.06, y=4.50, z=-257.50], oa['entity.ItemFrame.name'/149, l='MpServer', x=-814.06, y=4.50, z=-258.50], oa['entity.ItemFrame.name'/150, l='MpServer', x=-814.06, y=4.50, z=-259.50], oa['entity.ItemFrame.name'/151, l='MpServer', x=-804.06, y=5.50, z=-256.50], oa['entity.ItemFrame.name'/171, l='MpServer', x=-804.06, y=6.50, z=-253.50], ro['Cow'/35, l='MpServer', x=-851.63, y=7.00, z=-223.54], oa['entity.ItemFrame.name'/170, l='MpServer', x=-809.94, y=6.50, z=-255.50], oa['entity.ItemFrame.name'/169, l='MpServer', x=-808.50, y=5.50, z=-250.06], oa['entity.ItemFrame.name'/168, l='MpServer', x=-809.50, y=5.50, z=-250.06], oa['entity.ItemFrame.name'/175, l='MpServer', x=-814.06, y=4.50, z=-255.50], oa['entity.ItemFrame.name'/174, l='MpServer', x=-804.06, y=6.50, z=-255.50], oa['entity.ItemFrame.name'/173, l='MpServer', x=-804.06, y=5.50, z=-251.50], oa['entity.ItemFrame.name'/172, l='MpServer', x=-804.06, y=6.50, z=-252.50], oa['entity.ItemFrame.name'/163, l='MpServer', x=-804.06, y=5.50, z=-255.50], oa['entity.ItemFrame.name'/162, l='MpServer', x=-809.94, y=6.50, z=-254.50], oa['entity.ItemFrame.name'/161, l='MpServer', x=-809.94, y=5.50, z=-255.50], oa['entity.ItemFrame.name'/160, l='MpServer', x=-809.94, y=5.50, z=-254.50], oa['entity.ItemFrame.name'/167, l='MpServer', x=-806.50, y=5.50, z=-250.06], oa['entity.ItemFrame.name'/166, l='MpServer', x=-805.50, y=5.50, z=-250.06], oa['entity.ItemFrame.name'/165, l='MpServer', x=-804.06, y=5.50, z=-253.50], oa['entity.ItemFrame.name'/164, l='MpServer', x=-804.06, y=5.50, z=-252.50], oa['entity.ItemFrame.name'/178, l='MpServer', x=-814.06, y=4.50, z=-254.50], oa['entity.ItemFrame.name'/176, l='MpServer', x=-805.50, y=6.50, z=-250.06], oa['entity.ItemFrame.name'/177, l='MpServer', x=-806.50, y=6.50, z=-250.06], oa['entity.ItemFrame.name'/68, l='MpServer', x=-845.50, y=5.50, z=-273.94], rl['Bat'/205, l='MpServer', x=-906.72, y=14.02, z=-114.77], oi['Painting'/69, l='MpServer', x=-838.50, y=9.50, z=-237.94], rl['Bat'/204, l='MpServer', x=-909.66, y=10.66, z=-131.09], oi['Painting'/70, l='MpServer', x=-834.00, y=9.00, z=-231.06], rl['Bat'/207, l='MpServer', x=-875.38, y=4.00, z=-101.68], oi['Painting'/71, l='MpServer', x=-836.50, y=9.50, z=-231.06], rl['Bat'/206, l='MpServer', x=-895.95, y=7.31, z=-183.20], rl['Bat'/203, l='MpServer', x=-904.19, y=7.15, z=-129.91], rl['Bat'/202, l='MpServer', x=-894.36, y=4.14, z=-150.45], oi['Painting'/72, l='MpServer', x=-835.50, y=10.50, z=-231.06], oi['Painting'/73, l='MpServer', x=-834.50, y=10.50, z=-231.06], oi['Painting'/74, l='MpServer', x=-835.50, y=9.50, z=-231.06], rl['Bat'/216, l='MpServer', x=-826.88, y=6.94, z=-152.10], rl['Bat'/212, l='MpServer', x=-840.13, y=5.42, z=-109.26], rl['Bat'/213, l='MpServer', x=-831.32, y=4.64, z=-169.65], uj['Small Fireball'/214, l='MpServer', x=-821.78, y=48.84, z=-171.13], uj['Small Fireball'/215, l='MpServer', x=-831.63, y=129.25, z=-175.31], bcx['creepermantdp'/195, l='MpServer', x=-838.25, y=7.36, z=-143.59], rl['Bat'/209, l='MpServer', x=-877.47, y=4.17, z=-129.63], rl['Bat'/210, l='MpServer', x=-854.52, y=10.21, z=-131.29], oa['entity.ItemFrame.name'/119, l='MpServer', x=-815.06, y=6.50, z=-285.50], oa['entity.ItemFrame.name'/118, l='MpServer', x=-815.06, y=6.50, z=-285.50], oa['entity.ItemFrame.name'/117, l='MpServer', x=-815.06, y=6.50, z=-286.50], oa['entity.ItemFrame.name'/116, l='MpServer', x=-815.06, y=7.50, z=-286.50], oa['entity.ItemFrame.name'/115, l='MpServer', x=-815.06, y=7.50, z=-285.50], oa['entity.ItemFrame.name'/113, l='MpServer', x=-817.50, y=4.50, z=-254.06], oa['entity.ItemFrame.name'/126, l='MpServer', x=-812.94, y=6.50, z=-273.50], oa['entity.ItemFrame.name'/125, l='MpServer', x=-815.06, y=6.50, z=-283.50], oa['entity.ItemFrame.name'/124, l='MpServer', x=-815.06, y=7.50, z=-284.50], oa['entity.ItemFrame.name'/123, l='MpServer', x=-815.06, y=6.50, z=-284.50], oa['entity.ItemFrame.name'/122, l='MpServer', x=-815.06, y=5.50, z=-284.50], oa['entity.ItemFrame.name'/121, l='MpServer', x=-815.06, y=5.50, z=-286.50], oa['entity.ItemFrame.name'/120, l='MpServer', x=-815.06, y=5.50, z=-285.50]]
	Retry entities: 0 total; []
Stacktrace:
	at bcu.a(SourceFile:284)
	at atn.b(SourceFile:1743)
	at atn.d(SourceFile:627)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.1
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 188503968 bytes (179 MB) / 409149440 bytes (390 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 18931 (1060136 bytes; 1 MB) allocated, 266 (14896 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.6.1
	LWJGL: 2.9.0
	OpenGL: GeForce 310/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Default
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 941 (52696 bytes; 0 MB) allocated, 78 (4368 bytes; 0 MB) used

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-592628/29574191/