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

Time: 10/3/16 8:12 PM
Description: Ticking player

java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1453)
	at st.bO(SourceFile:510)
	at st.U(SourceFile:310)
	at sk.A_(SourceFile:351)
	at st.A_(SourceFile:1621)
	at aav.A_(SourceFile:271)
	at lx.k_(SourceFile:282)
	at mh.F_(SourceFile:179)
	at er.a(SourceFile:232)
	at mg.c(SourceFile:187)
	at net.minecraft.server.MinecraftServer.D(SourceFile:652)
	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(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 java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1453)
	at st.bO(SourceFile:510)
	at st.U(SourceFile:310)
	at sk.A_(SourceFile:351)
	at st.A_(SourceFile:1621)
	at aav.A_(SourceFile:271)

-- Player being ticked --
Details:
	Entity Type: null (lx)
	Entity ID: 11653
	Entity Name: Andnopo
	Entity's Exact location: 16743.30, 76.00, 13327.13
	Entity's Block location: World: (16743,76,13327), Chunk: (at 7,4,15 in 1046,832; contains blocks 16736,0,13312 to 16751,255,13327), Region: (32,26; contains chunks 1024,832 to 1055,863, blocks 16384,0,13312 to 16895,255,13823)
	Entity's Momentum: 0.00, -0.08, 0.00
	Entity's Passengers: []
	Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at lx.k_(SourceFile:282)
	at mh.F_(SourceFile:179)
	at er.a(SourceFile:232)

-- Ticking connection --
Details:
	Connection: er@254195f0
Stacktrace:
	at mg.c(SourceFile:187)
	at net.minecraft.server.MinecraftServer.D(SourceFile:652)
	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(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 16w39c
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 48433040 bytes (46 MB) / 519856128 bytes (495 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: 1, tcache: 1, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [lx['Andnopo'/11653, l='New World', x=16743.30, y=76.00, z=13327.13]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.