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  1. Minecraft: Java Edition
  2. MC-226192

Crash upon attempting to create a new scoreboard objective: java.lang.NullPointerException: Cannot invoke "String.toLowerCase(java.util.Locale)" because "☃" is null

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: 21w19a, 21w20a
    • Fix Version/s: 1.17 Pre-release 1
    • Labels:
      None
    • Environment:
      OS: Windows 10 Education build version 10.0.19041 Build 19041
    • Confirmation Status:
      Community Consensus
    • Category:
      Crash
    • Mojang Priority:
      Very Important

      Description

      The bug

      I ran this command and crashed out to the launcher (from this page): 

      /scoreboard objectives add clicked minecraft.used:minecraft.carrot_on_a_stick

      After loading the world back up I was unable to recreate the issue.

      Stack trace

      Description: keyPressed event handler
      
      java.lang.NullPointerException: Cannot invoke "String.toLowerCase(java.util.Locale)" because "☃" is null
      	at di.b(SourceFile:190)
      	at dz.listSuggestions(SourceFile:61)
      	at com.mojang.brigadier.tree.ArgumentCommandNode.listSuggestions(ArgumentCommandNode.java:69)
      	at com.mojang.brigadier.CommandDispatcher.getCompletionSuggestions(CommandDispatcher.java:598)
      	at dwm.a(SourceFile:184)
      	at dyw.b(SourceFile:77)
      	at dwr.d(SourceFile:152)
      	at dwr.b(SourceFile:147)
      	at dwr.a(SourceFile:290)
      	at dxg.a(SourceFile:64)
      	at dzz.a(SourceFile:123)
      	at dyw.a(SourceFile:87)
      	at duw.a(SourceFile:367)
      	at dzz.a(SourceFile:489)
      	at duw.a(SourceFile:363)
      	at duw.c(SourceFile:455)
      	at aqe.execute(SourceFile:102)
      	at duw.b(SourceFile:455)
      	at org.lwjgl.glfw.GLFWKeyCallbackI.callback(GLFWKeyCallbackI.java:37)
      	at org.lwjgl.system.JNI.invokeV(Native Method)
      	at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
      	at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:165)
      	at dpa.e(SourceFile:310)
      	at duy.f(SourceFile:1130)
      	at duy.e(SourceFile:721)
      	at net.minecraft.client.main.Main.main(SourceFile:217)
      

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              Assignee:
              boq [Mojang] Bartosz Bok
              Reporter:
              koleoidea Brent Bosley
              Votes:
              4 Vote for this issue
              Watchers:
              4 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:
                CHK: