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  1. Minecraft: Java Edition
  2. MC-117167

Error message for player advancement data containing only "null" calls advancements "achievements"

    Details

    • Confirmation Status:
      Confirmed

      Description

      The bug

      The error message being logged for a player advancement data file containing only null calls advancements "achievements". This is the only place the string "achievement" exists in 17w18b.

      The affected method is nd.g() in 17w18b.

      17w18b
      [12:53:33] [Server thread/ERROR]: Couldn't parse player advancements in ###
      com.google.gson.JsonParseException: Found null for achievements
      	at nd.g(SourceFile:118) [17w18b.jar:?]
      	at nd.<init>(SourceFile:61) [17w18b.jar:?]
      	at oy.h(SourceFile:918) [17w18b.jar:?]
      	at od.<init>(SourceFile:176) [17w18b.jar:?]
      	at oy.g(SourceFile:429) [17w18b.jar:?]
      	at op.b(SourceFile:120) [17w18b.jar:?]
      	at op.G_(SourceFile:66) [17w18b.jar:?]
      	at go.a(SourceFile:232) [17w18b.jar:?]
      	at om.c(SourceFile:187) [17w18b.jar:?]
      	at net.minecraft.server.MinecraftServer.D(SourceFile:652) [17w18b.jar:?]
      	at net.minecraft.server.MinecraftServer.C(SourceFile:562) [17w18b.jar:?]
      	at cgl.C(SourceFile:154) [17w18b.jar:?]
      	at net.minecraft.server.MinecraftServer.run(SourceFile:466) [17w18b.jar:?]
      	at java.lang.Thread.run(Unknown Source) [?:1.8.0_131]
      

      How to reproduce

      1. Close any open Minecraft instances, otherwise the file might get overwritten
      2. Edit a player advancement data file (advancements folder of a world folder) to contain only null
      3. Start Minecraft and open the world

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            People

            • Assignee:
              dinnerbone [Mojang] Dinnerbone (Nathan Adams)
              Reporter:
              marcono1234 [Helper] Marcono1234
            • Votes:
              1 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:
                CHK: