---- Minecraft Crash Report ----
// Don't do that.

Time: 12/17/12 10:57 AM
Description: Ticking entity

java.lang.ClassCastException: qn cannot be cast to iq
	at qz.j_(SourceFile:276)
	at yc.a(SourceFile:1319)
	at in.a(SourceFile:450)
	at yc.g(SourceFile:1297)
	at yc.h(SourceFile:1196)
	at in.h(SourceFile:362)
	at net.minecraft.server.MinecraftServer.r(SourceFile:744)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)


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

-- Head --
Stacktrace:
	at qz.j_(SourceFile:276)
	at yc.a(SourceFile:1319)
	at in.a(SourceFile:450)
	at yc.g(SourceFile:1297)

-- Entity being ticked --
Details:
	Entity Type: Arrow (qz)
	Entity ID: 6142
	Name: arrow
	Exact location: 251.78, 67.12, 238.39
	Block location: World: (251,67,238), Chunk: (at 11,4,14 in 15,14; contains blocks 240,0,224 to 255,255,239), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Momentum: 0.65, -0.32, -1.28
Stacktrace:
	at yc.h(SourceFile:1196)
	at in.h(SourceFile:362)

-- Affected level --
Details:
	Level name: New World
	All players: 1 total; [iq['dieffenbachj'/181, l='New World', x=252.08, y=65.00, z=237.69]]
	Chunk stats: ServerChunkCache: 562 Drop: 0
	Level seed: 2175547450056903300
	Level generator: ID 02 - largeBiomes, ver 0. Features enabled: true
	Level generator options: 
	Level spawn location: World: (240,64,256), Chunk: (at 0,4,0 in 15,16; contains blocks 240,0,256 to 255,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 446 game time, 446 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 36777 (now: false), thunder time: 159457 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.r(SourceFile:744)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)

-- System Details --
Details:
	Minecraft Version: 1.4.6
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_07, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1752475464 bytes (1671 MB) / 2058027008 bytes (1962 MB) up to 2058027008 bytes (1962 MB)
	JVM Flags: 2 total; -Xmx2048m -Xms2048m
	AABB Pool Size: 6852 (383712 bytes; 0 MB) allocated, 3762 (210672 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 71
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 1228 (68768 bytes; 0 MB) allocated, 1023 (57288 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['dieffenbachj'/181, l='New World', x=252.08, y=65.00, z=237.69]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.