---- Minecraft Crash Report ----
// Why did you do that?

Time: 9/12/17 6:01 PM
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 1
	at bel.f(SourceFile:74)
	at abs.k(SourceFile:68)
	at abs.j(SourceFile:63)
	at abs.c(SourceFile:24)
	at abd.n(SourceFile:246)
	at vp.B_(SourceFile:1742)
	at vq.B_(SourceFile:281)
	at amu.a(SourceFile:1523)
	at oo.a(SourceFile:714)
	at amu.h(SourceFile:1499)
	at amu.k(SourceFile:1382)
	at oo.k(SourceFile:547)
	at net.minecraft.server.MinecraftServer.D(SourceFile:632)
	at net.minecraft.server.MinecraftServer.C(SourceFile:560)
	at chd.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:464)
	at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Thread: Server thread
Stacktrace:
	at bel.f(SourceFile:74)
	at abs.k(SourceFile:68)
	at abs.j(SourceFile:63)
	at abs.c(SourceFile:24)
	at abd.n(SourceFile:246)
	at vp.B_(SourceFile:1742)
	at vq.B_(SourceFile:281)
	at amu.a(SourceFile:1523)
	at oo.a(SourceFile:714)
	at amu.h(SourceFile:1499)

-- Entity being ticked --
Details:
	Entity Type: minecraft:ender_dragon (abd)
	Entity ID: 6469
	Entity Name: Ender Dragon
	Entity's Exact location: 0.45, 134.15, 0.11
	Entity's Block location: World: (0,134,0), Chunk: (at 0,8,0 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)
	Entity's Momentum: 0.40, 0.23, 0.59
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at amu.k(SourceFile:1382)
	at oo.k(SourceFile:547)

-- Affected level --
Details:
	Level name: New World
	All players: 1 total; [oq['enemysfriend22'/1388, l='New World', x=-1.33, y=135.28, z=-2.21]]
	Chunk stats: ServerChunkCache: 1089 Drop: 0
	Level seed: 3534789830650562772
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: 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.D(SourceFile:632)
	at net.minecraft.server.MinecraftServer.C(SourceFile:560)
	at chd.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:464)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 1.12.1
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 159226544 bytes (151 MB) / 490315776 bytes (467 MB) up to 4281597952 bytes (4083 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [oq['enemysfriend22'/1388, l='New World', x=-1.33, y=135.28, z=-2.21]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.