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

Time: 04/11/15 20:12
Description: Ticking entity

java.lang.NullPointerException: Ticking entity
	at ry.a(SourceFile:445)
	at rx.a(SourceFile:833)
	at zf.a(SourceFile:634)
	at rx.a(SourceFile:766)
	at yw.a(SourceFile:61)
	at zf.a(SourceFile:235)
	at wg.B(SourceFile:296)
	at to.e(SourceFile:121)
	at th.a(SourceFile:129)
	at ry.cd(SourceFile:620)
	at rx.n(SourceFile:1680)
	at ry.n(SourceFile:473)
	at rl.n(SourceFile:134)
	at vs.n(SourceFile:41)
	at wg.n(SourceFile:183)
	at rx.m(SourceFile:1542)
	at ry.m(SourceFile:265)
	at wg.m(SourceFile:198)
	at aho.a(SourceFile:1481)
	at lq.a(SourceFile:719)
	at aho.g(SourceFile:1459)
	at aho.k(SourceFile:1349)
	at lq.k(SourceFile:552)
	at net.minecraft.server.MinecraftServer.D(SourceFile:618)
	at net.minecraft.server.MinecraftServer.C(SourceFile:546)
	at bya.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:450)
	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 ry.a(SourceFile:445)
	at rx.a(SourceFile:833)
	at zf.a(SourceFile:634)
	at rx.a(SourceFile:766)
	at yw.a(SourceFile:61)
	at zf.a(SourceFile:235)
	at wg.B(SourceFile:296)
	at to.e(SourceFile:121)
	at th.a(SourceFile:129)
	at ry.cd(SourceFile:620)
	at rx.n(SourceFile:1680)
	at ry.n(SourceFile:473)
	at rl.n(SourceFile:134)
	at vs.n(SourceFile:41)
	at wg.n(SourceFile:183)
	at rx.m(SourceFile:1542)
	at ry.m(SourceFile:265)
	at wg.m(SourceFile:198)
	at aho.a(SourceFile:1481)
	at lq.a(SourceFile:719)
	at aho.g(SourceFile:1459)

-- Entity being ticked --
Details:
	Entity Type: Wolf (wg)
	Entity ID: 553
	Entity Name: Wolf
	Entity's Exact location: -254.22, 65.00, 1203.49
	Entity's Block location: World: (-255,65,1203), Chunk: (at 1,4,3 in -16,75; contains blocks -256,0,1200 to -241,255,1215), Region: (-1,2; contains chunks -32,64 to -1,95, blocks -512,0,1024 to -1,255,1535)
	Entity's Momentum: 0.07, -0.08, 0.05
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at aho.k(SourceFile:1349)
	at lq.k(SourceFile:552)

-- Affected level --
Details:
	Level name: Shields?
	All players: 1 total; [ls['Smashum'/505, l='Shields?', x=-251.08, y=65.00, z=1203.52]]
	Chunk stats: ServerChunkCache: 485 Drop: 0
	Level seed: -245435942215360136
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (32,64,256), Chunk: (at 0,4,0 in 2,16; contains blocks 32,0,256 to 47,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 859100 game time, 859100 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 8046 (now: false), thunder time: 56333 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:618)
	at net.minecraft.server.MinecraftServer.C(SourceFile:546)
	at bya.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:450)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 15w44b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.8.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 196864360 bytes (187 MB) / 304549888 bytes (290 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 1, tcache: 1, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [ls['Smashum'/505, l='Shields?', x=-251.08, y=65.00, z=1203.52]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.