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  1. Minecraft: Java Edition
  2. MC-140235

Generating chunks and using /locate causes a datafixer crash

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Minecraft 18w48b
    • Minecraft 18w48a
    • None
    • Confirmed

      18w48a: crash-2018-11-29_14.53.32-server.txt
      java.lang.AbstractMethodError: bxx$$Lambda$1097/621257072.a(Lcom/mojang/datafixers/Dynamic;)Ljava/lang/Object;
	at yg.a(SourceFile:18)
	at cat.<init>(SourceFile:44)
	at bvl$a.<init>(SourceFile:29)
	at bxc$$Lambda$1035/262217690.load(Unknown Source)
	at cax.a(SourceFile:86)
	at bqu.a(SourceFile:614)
	at bqu.a(SourceFile:229)
	at ui.d(SourceFile:439)
	at ui$$Lambda$2066/1657672914.get(Unknown Source)
	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
	at ui$$Lambda$2077/102419981.accept(Unknown Source)
	at java.util.ArrayList.forEach(ArrayList.java:1249)
	at ui.e(SourceFile:369)
	at ui.a(SourceFile:272)
	at baq.a(SourceFile:261)
	at baq.d(SourceFile:256)
	at baq.b(SourceFile:497)
	at baq.a(SourceFile:1322)
	at agi.az(SourceFile:1134)
	at agi.Y(SourceFile:457)
	at agr.Y(SourceFile:259)
	at agi.U_(SourceFile:376)
	at agr.U_(SourceFile:1821)
	at aqj.U_(SourceFile:283)
	at ul.i(SourceFile:377)
	at uz.ab_(SourceFile:198)
	at io.a(SourceFile:238)
	at uy.c(SourceFile:171)
	at net.minecraft.server.MinecraftServer.b(SourceFile:805)
	at net.minecraft.server.MinecraftServer.a(SourceFile:716)
	at dog.a(SourceFile:128)
	at net.minecraft.server.MinecraftServer.run(SourceFile:582)
	at java.lang.Thread.run(Thread.java:745)

      How to Reproduce:

      • Create a new world (creative with seed 18w48a, any seed will work)
      • Join the world and execute  
        /locate New_Village
      • This will yield a village of the new type somewhere around x700, z-1470. Teleport to this village using the provided command.
      • And the game will crash.

      Edit:

      It appears to just exploring the world a bit too fast also causes the crash to happen. Did happen as often as using the command. Upon reopening the world the game will crash with a tick loop.

        1. crash-2018-11-29_14.53.32-server.txt
          4 kB
          Tom Udding
        2. MinecraftLauncher_2018-11-29_15-45-27.png
          88 kB
          [Helper] Misode
        3. MinecraftLauncher_2018-11-29_15-46-03.png
          96 kB
          [Helper] Misode

            ProfMobius ProfMobius (Thomas Guimbretiere)
            tomudding Tom Udding
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            17 Vote for this issue
            Watchers:
            8 Start watching this issue

              Created:
              Updated:
              Resolved:
              CHK: