---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 30.10.16 17:17
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 1
	at bay.f(SourceFile:74)
	at ym.k(SourceFile:68)
	at ym.j(SourceFile:63)
	at ym.c(SourceFile:24)
	at xx.n(SourceFile:239)
	at st.A_(SourceFile:1697)
	at su.A_(SourceFile:278)
	at ajn.a(SourceFile:1537)
	at lv.a(SourceFile:718)
	at ajn.g(SourceFile:1515)
	at ajn.k(SourceFile:1398)
	at lv.k(SourceFile:551)
	at net.minecraft.server.MinecraftServer.D(SourceFile:634)
	at net.minecraft.server.MinecraftServer.C(SourceFile:562)
	at ccb.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:466)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Thread: Server thread
Stacktrace:
	at bay.f(SourceFile:74)
	at ym.k(SourceFile:68)
	at ym.j(SourceFile:63)
	at ym.c(SourceFile:24)
	at xx.n(SourceFile:239)
	at st.A_(SourceFile:1697)
	at su.A_(SourceFile:278)
	at ajn.a(SourceFile:1537)
	at lv.a(SourceFile:718)
	at ajn.g(SourceFile:1515)

-- Entity being ticked --
Details:
	Entity Type: minecraft:ender_dragon (xx)
	Entity ID: 31048
	Entity Name: Ender Dragon
	Entity's Exact location: 12,67, 85,16, 25,39
	Entity's Block location: World: (12,85,25), Chunk: (at 12,5,9 in 0,1; contains blocks 0,0,16 to 15,255,31), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Entity's Momentum: 0,85, 0,18, 0,69
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at ajn.k(SourceFile:1398)
	at lv.k(SourceFile:551)

-- Affected level --
Details:
	Level name: New Worldw
	All players: 1 total; [lx['miwob'/21543, l='New Worldw', x=-0,88, y=62,00, z=1,48]]
	Chunk stats: ServerChunkCache: 1590 Drop: 0
	Level seed: 1745673006
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (56,64,256), Chunk: (at 8,4,0 in 3,16; contains blocks 48,0,256 to 63,255,271), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 2575 game time, 2575 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 113088 (now: false), thunder time: 24899 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:634)
	at net.minecraft.server.MinecraftServer.C(SourceFile:562)
	at ccb.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:466)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 16w42a
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_111, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 367133880 bytes (350 MB) / 955064320 bytes (910 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: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [lx['miwob'/21543, l='New Worldw', x=-0,88, y=62,00, z=1,48]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.