From eb11845f87197d08a68bf083e509679bead010ab Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Tue, 9 Mar 2021 21:06:09 +0000
Subject: [PATCH] Fix creating worlds with "invalid" names (Fixes #5331)

---
 Spigot-API-Patches/0281-Implement-Keyed-on-World.patch | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Spigot-API-Patches/0281-Implement-Keyed-on-World.patch b/Spigot-API-Patches/0281-Implement-Keyed-on-World.patch
index 73d4fbf49..7a8242ed5 100644
--- a/Spigot-API-Patches/0281-Implement-Keyed-on-World.patch
+++ b/Spigot-API-Patches/0281-Implement-Keyed-on-World.patch
@@ -79,7 +79,7 @@ index 3c50a10fda033c139993ed5465a92f95d5b10c17..064497506e6a5ab89ca43b99968ca79d
  
      /**
 diff --git a/src/main/java/org/bukkit/WorldCreator.java b/src/main/java/org/bukkit/WorldCreator.java
-index 6e6945dd4c770be04ec09da3958fae751717527a..3802bf39c2b8330ab64f90f91c88741500caaa64 100644
+index 6e6945dd4c770be04ec09da3958fae751717527a..1d93a6c42d6c93ffd50c6054e74f3ff75d745b58 100644
 --- a/src/main/java/org/bukkit/WorldCreator.java
 +++ b/src/main/java/org/bukkit/WorldCreator.java
 @@ -11,6 +11,7 @@ import org.jetbrains.annotations.Nullable;
@@ -98,7 +98,7 @@ index 6e6945dd4c770be04ec09da3958fae751717527a..3802bf39c2b8330ab64f90f91c887415
 -            throw new IllegalArgumentException("World name cannot be null");
 -        }
 +        // Paper start
-+        this(name, NamespacedKey.minecraft(name));
++        this(name, NamespacedKey.minecraft(name.toLowerCase(java.util.Locale.ENGLISH)));
 +    }
  
 -        this.name = name;