From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: u9g <winworkswow@gmail.com>
Date: Mon, 3 Jan 2022 23:32:42 -0500
Subject: [PATCH] Add new overload to PersistentDataContainer#has

Adds the new overload: PersistentDataContainer#has(NamespacedKey key)

diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
index 1c33e3456c410dac3ac2f0caef52ee24e00ffca5..564e97c6fefb4c8af4b4df70e68951a2157e72cb 100644
--- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
+++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java
@@ -161,5 +161,12 @@ public class CraftPersistentDataContainer implements PersistentDataContainer {
     public void clear() {
         this.customDataTags.clear();
     }
+
+    @Override
+    public boolean has(NamespacedKey key) {
+        Preconditions.checkArgument(key != null, "The provided key for the custom value was null");
+
+        return this.customDataTags.containsKey(key.toString());
+    }
     // Paper end
 }