---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 6/12/17 9:35 AM
Description: Ticking entity

java.lang.ArrayIndexOutOfBoundsException: 1
	at bej.f(SourceFile:74)
	at abq.k(SourceFile:68)
	at abq.j(SourceFile:63)
	at abq.c(SourceFile:24)
	at abb.n(SourceFile:246)
	at vn.B_(SourceFile:1742)
	at vo.B_(SourceFile:281)
	at ams.a(SourceFile:1523)
	at om.a(SourceFile:714)
	at ams.h(SourceFile:1499)
	at ams.k(SourceFile:1382)
	at om.k(SourceFile:547)
	at net.minecraft.server.MinecraftServer.D(SourceFile:632)
	at net.minecraft.server.MinecraftServer.C(SourceFile:560)
	at chb.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 bej.f(SourceFile:74)
	at abq.k(SourceFile:68)
	at abq.j(SourceFile:63)
	at abq.c(SourceFile:24)
	at abb.n(SourceFile:246)
	at vn.B_(SourceFile:1742)
	at vo.B_(SourceFile:281)
	at ams.a(SourceFile:1523)
	at om.a(SourceFile:714)
	at ams.h(SourceFile:1499)

-- Entity being ticked --
Details:
	Entity Type: minecraft:ender_dragon (abb)
	Entity ID: 20
	Entity Name: Ender Dragon
	Entity's Exact location: -0.14, 126.09, 0.87
	Entity's Block location: World: (-1,126,0), Chunk: (at 15,7,0 in -1,0; contains blocks -16,0,0 to -1,255,15), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Entity's Momentum: -1.04, 0.30, 0.02
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at ams.k(SourceFile:1382)
	at om.k(SourceFile:547)

-- Affected level --
Details:
	Level name: economic 2x2 spruce by ilmango
	All players: 1 total; [oo['_MethodZz_'/2, l='economic 2x2 spruce by ilmango', x=-0.96, y=131.77, z=2.56]]
	Chunk stats: ServerChunkCache: 441 Drop: 0
	Level seed: -3448575810511941159
	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 chb.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
	Operating System: Windows 10 (x86) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 75086968 bytes (71 MB) / 281309184 bytes (268 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: 0, tallocated: 0
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [oo['_MethodZz_'/2, l='economic 2x2 spruce by ilmango', x=-0.96, y=131.77, z=2.56]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.