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  1. Minecraft: Java Edition
  2. MC-122754

Potion ID with caps crashes game

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: Minecraft 17w48a, Minecraft 17w49a, Minecraft 17w50a, Minecraft 18w02a, Minecraft 18w06a, Minecraft 18w19b
    • Fix Version/s: Minecraft 18w21b
    • Labels:
      None
    • Confirmation Status:
      Confirmed

      Description

      The bug

      /giving yourself a potion with a proper "Potion" tag, but with caps, will crash your game.

      For Example:

      /give @p minecraft:potion{Potion:"swiftness"}

      gives you a potion with swiftness, but

      /give @p minecraft:potion{Potion:"Swiftness"}

      will immediately crash your game.

      This doesn't work for invalid potion id's, like "potato".
      Along with that, spawning in a container with the potion in it will crash you the instant you check the contents of the container.

      EDIT: Writing any potion ID, valid or invalid, with caps seems to crash your game

      Crash report

      Description: Rendering entity in world
      
      java.lang.IllegalArgumentException: Non [a-z0-9/._-] character in path of location: minecraft:Swiftness
      	at mq.<init>(SourceFile:31)
      	at mq.<init>(SourceFile:36)
      	at anm.a(SourceFile:27)
      	at ano.c(SourceFile:133)
      	at ano.d(SourceFile:125)
      	at ano.c(SourceFile:82)
      	at bnb$4.getColor(SourceFile:81)
      	at bnb.a(SourceFile:117)
      	at cem.a(SourceFile:180)
      	at cem.a(SourceFile:98)
      	at cem.a(SourceFile:80)
      	at cem.a(SourceFile:116)
      	at cek.a(SourceFile:142)
      	at cek.a(SourceFile:18)
      	at cdv.a(SourceFile:362)
      	at cdv.a(SourceFile:349)
      	at bzo.a(SourceFile:614)
      	at bzi.b(SourceFile:1185)
      	at bzi.a(SourceFile:1093)
      	at bzi.a(SourceFile:951)
      	at bmm.b(SourceFile:820)
      	at bmm.a(SourceFile:381)
      	at net.minecraft.client.main.Main.main(SourceFile:134)
      

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              • Assignee:
                boq [Mojang] Bartosz Bok
                Reporter:
                RicinTouch Alex
              • Votes:
                6 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:
                  CHK: