---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 5/20/18 3:33 PM
Description: Exception generating new chunk

java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: 11165
	at java.util.concurrent.CompletableFuture.reportGet(Unknown Source)
	at java.util.concurrent.CompletableFuture.get(Unknown Source)
	at sj.c(SourceFile:129)
	at bbd.d(SourceFile:248)
	at bbp.<init>(SourceFile:46)
	at ame.b(SourceFile:122)
	at amd.b(SourceFile:64)
	at ame.a(SourceFile:102)
	at ame.a(SourceFile:152)
	at akz.c(SourceFile:67)
	at akc.a(SourceFile:102)
	at aij.cP(SourceFile:628)
	at aii.k(SourceFile:1943)
	at aij.k(SourceFile:499)
	at aqn.k(SourceFile:35)
	at ard.k(SourceFile:269)
	at aii.R_(SourceFile:1798)
	at aij.R_(SourceFile:283)
	at aqn.R_(SourceFile:40)
	at ard.R_(SourceFile:244)
	at bbd.a(SourceFile:1249)
	at sk.a(SourceFile:584)
	at bbd.g(SourceFile:1225)
	at bbd.l(SourceFile:1107)
	at sk.l(SourceFile:500)
	at net.minecraft.server.MinecraftServer.w(SourceFile:702)
	at net.minecraft.server.MinecraftServer.v(SourceFile:627)
	at dhr.v(SourceFile:156)
	at net.minecraft.server.MinecraftServer.run(SourceFile:532)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 11165
	at it.unimi.dsi.fastutil.longs.Long2LongLinkedOpenHashMap$MapIterator.nextEntry(Long2LongLinkedOpenHashMap.java:1207)
	at it.unimi.dsi.fastutil.longs.Long2LongLinkedOpenHashMap$EntryIterator.next(Long2LongLinkedOpenHashMap.java:1299)
	at it.unimi.dsi.fastutil.longs.Long2LongLinkedOpenHashMap$EntryIterator.next(Long2LongLinkedOpenHashMap.java:1288)
	at baw.a(SourceFile:25)
	at baw.get(SourceFile:53)
	at it.unimi.dsi.fastutil.longs.AbstractLong2ObjectFunction.get(AbstractLong2ObjectFunction.java:148)
	at java.util.Map.computeIfAbsent(Unknown Source)
	at td.a(SourceFile:47)
	at td.a(SourceFile:23)
	at agf$a.a(SourceFile:153)
	at java.util.concurrent.CompletableFuture.uniApply(Unknown Source)
	at java.util.concurrent.CompletableFuture$UniApply.tryFire(Unknown Source)
	at java.util.concurrent.CompletableFuture$Completion.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	... 1 more


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

-- Head --
Thread: Server thread
Stacktrace:
	at java.util.concurrent.CompletableFuture.reportGet(Unknown Source)

-- Chunk to be generated --
Details:
	Location: -182,13
	Position hash: 60129541962
	Generator: brg@72afe2d0
Stacktrace:
	at sj.a(SourceFile:179)
	at sj.c(SourceFile:132)
	at bbd.d(SourceFile:248)
	at bbp.<init>(SourceFile:46)
	at ame.b(SourceFile:122)
	at amd.b(SourceFile:64)
	at ame.a(SourceFile:102)
	at ame.a(SourceFile:152)
	at akz.c(SourceFile:67)
	at akc.a(SourceFile:102)
	at aij.cP(SourceFile:628)
	at aii.k(SourceFile:1943)
	at aij.k(SourceFile:499)
	at aqn.k(SourceFile:35)
	at ard.k(SourceFile:269)
	at aii.R_(SourceFile:1798)
	at aij.R_(SourceFile:283)
	at aqn.R_(SourceFile:40)
	at ard.R_(SourceFile:244)
	at bbd.a(SourceFile:1249)
	at sk.a(SourceFile:584)
	at bbd.g(SourceFile:1225)
	at bbd.l(SourceFile:1107)
	at sk.l(SourceFile:500)
	at net.minecraft.server.MinecraftServer.w(SourceFile:702)
	at net.minecraft.server.MinecraftServer.v(SourceFile:627)
	at dhr.v(SourceFile:156)
	at net.minecraft.server.MinecraftServer.run(SourceFile:532)
	at java.lang.Thread.run(Unknown Source)

-- Entity being ticked --
Details:
	Entity Type: minecraft:zombie (ard)
	Entity ID: 18519
	Entity Name: Zombie
	Entity's Exact location: -847.70, 60.00, -600.70
	Entity's Block location: World: (-848,60,-601), Chunk: (at 0,3,7 in -53,-38; contains blocks -848,0,-608 to -833,255,-593), Region: (-2,-2; contains chunks -64,-64 to -33,-33, blocks -1024,0,-1024 to -513,255,-513)
	Entity's Momentum: 0.00, -0.08, 0.00
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null

-- Affected level --
Details:
	Level name: end
	All players: 1 total; [sm['Bemoty'/392, l='end', x=-845.75, y=60.00, z=-598.16]]
	Chunk stats: ServerChunkCache: 410 Drop: 0
	Level seed: 7244823358194130475
	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

-- System Details --
Details:
	Minecraft Version: 18w20c
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_171, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 357788136 bytes (341 MB) / 1073741824 bytes (1024 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [sm['Bemoty'/392, l='end', x=-845.75, y=60.00, z=-598.16]]
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.