---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 10/25/18 2:43 PM
Description: Exception generating new chunk

java.lang.ClassCastException: bdg cannot be cast to bfp
	at uh.d(SourceFile:212)
	at bym.a(SourceFile:250)
	at bym.a(SourceFile:183)
	at bye.a(SourceFile:59)
	at bxw$a.a(SourceFile:139)
	at byc.a(SourceFile:62)
	at buo.a(SourceFile:81)
	at bwv.a(SourceFile:22)
	at bwv.a(SourceFile:15)
	at bvo.a(SourceFile:35)
	at brd.a(SourceFile:20)
	at brd.a(SourceFile:13)
	at bqw.a(SourceFile:36)
	at azx.a(SourceFile:407)
	at bpn.a(SourceFile:193)
	at boa.f(SourceFile:54)
	at boa.a(SourceFile:200)
	at ty.a(SourceFile:451)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952)
	at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:926)
	at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)


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

-- Head --
Thread: Server thread
Stacktrace:
	at uh.d(SourceFile:212)
	at bym.a(SourceFile:250)
	at bym.a(SourceFile:183)
	at bye.a(SourceFile:59)
	at bxw$a.a(SourceFile:139)
	at byc.a(SourceFile:62)
	at buo.a(SourceFile:81)
	at bwv.a(SourceFile:22)
	at bwv.a(SourceFile:15)
	at bvo.a(SourceFile:35)
	at brd.a(SourceFile:20)
	at brd.a(SourceFile:13)
	at bqw.a(SourceFile:36)
	at azx.a(SourceFile:407)
	at bpn.a(SourceFile:193)
	at boa.f(SourceFile:54)
	at boa.a(SourceFile:200)

-- Chunk to be generated --
Details:
	Location: 4,4
	Position hash: 17179869188
	Generator: bpn@30f242a
Stacktrace:
	at ty.a(SourceFile:451)
	at java.util.concurrent.CompletableFuture.uniCompose(CompletableFuture.java:952)

-- Affected level --
Details:
	Level name: ocean_high
	All players: 0 total; []
	Chunk stats: ServerChunkCache: 671
	Level seed: -1396796141916744024
	Level generator: ID 01 - flat, ver 0. Features enabled: true
	Level generator options: {biome:"minecraft:deep_ocean",layers:[{block:"minecraft:bedrock",height:1b},{block:"minecraft:sand",height:252s},{block:"minecraft:water",height:3b}],structures:{biome_1:{}}}
	Level spawn location: World: (8,255,8), Chunk: (at 8,15,8 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: 0x04ABD - Anvil
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at tz.a(SourceFile:406)
	at net.minecraft.server.MinecraftServer.a(SourceFile:347)
	at djr.a(SourceFile:83)
	at djr.d(SourceFile:105)
	at net.minecraft.server.MinecraftServer.run(SourceFile:546)
	at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
	Minecraft Version: 18w43b
	Operating System: Mac OS X (x86_64) version 10.12.6
	Java Version: 1.8.0_74, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 303551576 bytes (289 MB) / 536870912 bytes (512 MB) up to 2147483648 bytes (2048 MB)
	JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Profiler Position: N/A (disabled)
	Player Count: 0 / 8; []
	Data Packs: vanilla
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.