---- Minecraft Crash Report ----
// Ouch. That hurt :(

Time: 28.09.16 17:26
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 sr.bO(SourceFile:509)
	at sr.U(SourceFile:309)
	at si.A_(SourceFile:351)
	at sr.A_(SourceFile:1616)
	at aat.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 cby.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 sr.bO(SourceFile:509)
	at sr.U(SourceFile:309)
	at si.A_(SourceFile:351)
	at sr.A_(SourceFile:1616)
	at aat.A_(SourceFile:271)

-- Player being ticked --
Details:
	Entity Type: null (lx)
	Entity ID: 0
	Entity Name: TheHauk
	Entity's Exact location: 1800,82, 65,00, 218,08
	Entity's Block location: World: (1800,65,218), Chunk: (at 8,4,10 in 112,13; contains blocks 1792,0,208 to 1807,255,223), Region: (3,0; contains chunks 96,0 to 127,31, blocks 1536,0,0 to 2047,255,511)
	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@69ba555
Stacktrace:
	at mg.c(SourceFile:187)
	at net.minecraft.server.MinecraftServer.D(SourceFile:652)
	at net.minecraft.server.MinecraftServer.C(SourceFile:562)
	at cby.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:466)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 16w39a
	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: 137602664 bytes (131 MB) / 572952576 bytes (546 MB) up to 5355339776 bytes (5107 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx5G -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; [lx['TheHauk'/0, l='1.11 Snapshot-Testwelt', x=1800,82, y=65,00, z=218,08]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.