---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 18-2-16 20:45
Description: Exception ticking world

java.lang.ClassCastException: aji cannot be cast to akm
	at awj$c.a(SourceFile:1692)
	at awg.a(SourceFile:42)
	at awc.a(SourceFile:94)
	at ath.b(SourceFile:166)
	at asd.a(SourceFile:803)
	at asd.a(SourceFile:791)
	at lo.d(SourceFile:115)
	at lu.a(SourceFile:85)
	at lv.c(SourceFile:146)
	at lp.d(SourceFile:221)
	at net.minecraft.server.MinecraftServer.D(SourceFile:617)
	at net.minecraft.server.MinecraftServer.C(SourceFile:553)
	at bym.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:457)
	at java.lang.Thread.run(Unknown Source)


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

-- Head --
Stacktrace:
	at awj$c.a(SourceFile:1692)
	at awg.a(SourceFile:42)
	at awc.a(SourceFile:94)
	at ath.b(SourceFile:166)
	at asd.a(SourceFile:803)
	at asd.a(SourceFile:791)
	at lo.d(SourceFile:115)
	at lu.a(SourceFile:85)
	at lv.c(SourceFile:146)
	at lp.d(SourceFile:221)

-- Affected level --
Details:
	Level name: New Worlddddddzz
	All players: 1 total; [lr['SWdV'/22922, l='New Worlddddddzz', x=9,36, y=69,11, z=-1409,18]]
	Chunk stats: ServerChunkCache: 4221 Drop: 0
	Level seed: -1422177564106480904
	Level generator: ID 01 - flat, ver 0. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-26,4,-1470), Chunk: (at 6,0,2 in -2,-92; contains blocks -32,0,-1472 to -17,255,-1457), Region: (-1,-3; contains chunks -32,-96 to -1,-65, blocks -512,0,-1536 to -1,255,-1025)
	Level time: 81280 game time, 1364 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 35818 (now: false), thunder time: 92134 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:617)
	at net.minecraft.server.MinecraftServer.C(SourceFile:553)
	at bym.C(SourceFile:154)
	at net.minecraft.server.MinecraftServer.run(SourceFile:457)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.9-pre2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_74, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 267758888 bytes (255 MB) / 1060372480 bytes (1011 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: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 1 / 8; [lr['SWdV'/22922, l='New Worlddddddzz', x=9,36, y=69,11, z=-1409,18]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.