---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 12/7/14 1:21 PM
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
	at ayv.f(SourceFile:263)
	at are.b(SourceFile:123)
	at are.a(SourceFile:59)
	at sp.a(SourceFile:514)
	at wx.c(SourceFile:1749)
	at wx.K(SourceFile:303)
	at xo.K(SourceFile:176)
	at xq.K(SourceFile:157)
	at wx.t_(SourceFile:266)
	at xo.t_(SourceFile:1265)
	at xq.t_(SourceFile:211)
	at afm.t_(SourceFile:32)
	at agh.t_(SourceFile:258)
	at afn.t_(SourceFile:63)
	at aqr.a(SourceFile:1407)
	at qu.a(SourceFile:600)
	at aqr.g(SourceFile:1385)
	at aqr.i(SourceFile:1278)
	at qu.i(SourceFile:478)
	at net.minecraft.server.MinecraftServer.A(SourceFile:608)
	at net.minecraft.server.MinecraftServer.z(SourceFile:532)
	at cyk.z(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:448)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at ayv.f(SourceFile:263)
	at are.b(SourceFile:123)
	at are.a(SourceFile:59)
	at sp.a(SourceFile:514)
	at wx.c(SourceFile:1749)
	at wx.K(SourceFile:303)
	at xo.K(SourceFile:176)
	at xq.K(SourceFile:157)
	at wx.t_(SourceFile:266)
	at xo.t_(SourceFile:1265)
	at xq.t_(SourceFile:211)
	at afm.t_(SourceFile:32)
	at agh.t_(SourceFile:258)
	at afn.t_(SourceFile:63)
	at aqr.a(SourceFile:1407)
	at qu.a(SourceFile:600)
	at aqr.g(SourceFile:1385)

-- Entity being ticked --
Details:
	Entity Type: PigZombie (afn)
	Entity ID: 160867
	Entity Name: Zombie Pigman
	Entity's Exact location: 57.00, 77.00, 243.00
	Entity's Block location: 57.00,77.00,243.00 - World: (57,77,243), Chunk: (at 9,4,3 in 3,15; contains blocks 48,0,240 to 63,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: -0.04, -0.08, 0.02
	Entity's Rider: ~~ERROR~~ NullPointerException: null
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at aqr.i(SourceFile:1278)
	at qu.i(SourceFile:478)

-- Affected level --
Details:
	Level name: SurvivalWorldNormal4
	All players: 1 total; [qx['BebopSpeaks'/144861, l='SurvivalWorldNormal4', x=5.70, y=77.00, z=29.35]]
	Chunk stats: ServerChunkCache: 684 Drop: 0
	Level seed: 6020627931811223513
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: 0.00,0.00,0.00 - World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 0 game time, 0 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: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at net.minecraft.server.MinecraftServer.A(SourceFile:608)
	at net.minecraft.server.MinecraftServer.z(SourceFile:532)
	at cyk.z(SourceFile:155)
	at net.minecraft.server.MinecraftServer.run(SourceFile:448)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.8.1
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.8.0_20, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 601286184 bytes (573 MB) / 937320448 bytes (893 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 38, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [qx['BebopSpeaks'/144861, l='SurvivalWorldNormal4', x=5.70, y=77.00, z=29.35]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.