---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 28/09/16 8:59 PM
Description: Ticking block entity

java.lang.NullPointerException: Ticking block entity
	at asg.b(SourceFile:316)
	at asg.c(SourceFile:372)
	at asg.b(SourceFile:401)
	at asi.a(SourceFile:345)
	at asi.a(SourceFile:364)
	at asi.a(SourceFile:332)
	at asi.J(SourceFile:193)
	at asi.o(SourceFile:135)
	at asi.F_(SourceFile:122)
	at ajl.k(SourceFile:1429)
	at lv.k(SourceFile:549)
	at net.minecraft.server.MinecraftServer.D(SourceFile:634)
	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 asg.b(SourceFile:316)
	at asg.c(SourceFile:372)
	at asg.b(SourceFile:401)
	at asi.a(SourceFile:345)
	at asi.a(SourceFile:364)
	at asi.a(SourceFile:332)
	at asi.J(SourceFile:193)
	at asi.o(SourceFile:135)
	at asi.F_(SourceFile:122)

-- Block entity being ticked --
Details:
	Name: minecraft:hopper // asi
	Block type: ID #154 (tile.hopper // aoa)
	Block data value: 3 / 0x3 / 0b0011
	Block location: World: (984,85,-365), Chunk: (at 8,5,3 in 61,-23; contains blocks 976,0,-368 to 991,255,-353), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)
	Actual block type: ID #154 (tile.hopper // aoa)
	Actual block data value: 3 / 0x3 / 0b0011
Stacktrace:
	at ajl.k(SourceFile:1429)
	at lv.k(SourceFile:549)

-- Affected level --
Details:
	Level name: world
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 625 Drop: 0
	Level seed: 4031384495743822299
	Level generator: ID 03 - amplified, ver 0. Features enabled: true
	Level generator options: 
	Level spawn location: World: (964,78,-316), Chunk: (at 4,4,4 in 60,-20; contains blocks 960,0,-320 to 975,255,-305), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)
	Level time: 993435663 game time, 6000 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 9130 (now: false), thunder time: 4793 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
	at net.minecraft.server.MinecraftServer.D(SourceFile:634)
	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: 112693440 bytes (107 MB) / 369160192 bytes (352 MB) up to 2120679424 bytes (2022 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn256M
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.