Hopper: java.lang.ArrayIndexOutOfBoundsException: 7

java.lang.ArrayIndexOutOfBoundsException: 7
	at anu.l(SourceFile:325)
	at anu.k(SourceFile:174)
	at anu.i(SourceFile:160)
	at anu.h(SourceFile:152)

---- Minecraft Crash Report ----
// My bad.

Time: 10/26/13 5:04 PM
Description: Ticking block entity

java.lang.ArrayIndexOutOfBoundsException: 7
	at anu.l(SourceFile:325)
	at anu.k(SourceFile:174)
	at anu.i(SourceFile:160)
	at anu.h(SourceFile:152)
	at afn.h(SourceFile:1286)
	at mj.h(SourceFile:365)
	at net.minecraft.server.MinecraftServer.u(SourceFile:511)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at bsk.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at ky.run(SourceFile:617)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at anu.l(SourceFile:325)
	at anu.k(SourceFile:174)
	at anu.i(SourceFile:160)
	at anu.h(SourceFile:152)

-- Block entity being ticked --
Details:
	Name: Hopper // anu
	Block type: ID #154 (tile.hopper // ajz)
	Block data value: 7 / 0x7 / 0b0111
	Block location: World: (-16,64,-98), Chunk: (at 0,4,14 in -1,-7; contains blocks -16,0,-112 to -1,255,-97), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Actual block type: ID #154 (tile.hopper // ajz)
	Actual block data value: 7 / 0x7 / 0b0111
Stacktrace:
	at afn.h(SourceFile:1286)
	at mj.h(SourceFile:365)

-- Affected level --
Details:
	Level name: strictly creative latest
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 625 Drop: 0
	Level seed: 437717313255140057
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-1,64,-178), Chunk: (at 15,4,14 in -1,-12; contains blocks -16,0,-192 to -1,255,-177), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
	Level time: 5081464 game time, 3139 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 129015 (now: false), thunder time: 147292 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.u(SourceFile:511)
	at net.minecraft.server.MinecraftServer.t(SourceFile:441)
	at bsk.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at ky.run(SourceFile:617)

-- System Details --
Details:
	Minecraft Version: 1.7.2
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 437878616 bytes (417 MB) / 837550080 bytes (798 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 1630 (91280 bytes; 0 MB) allocated, 1630 (91280 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 2259 (126504 bytes; 0 MB) allocated, 2259 (126504 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.