From 9183d69f841ddcc6a5e775868de2c4bdb33dc66e Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 18 Mar 2016 13:50:14 -0400
Subject: [PATCH] Remove Metadata on reload

Metadata is not meant to persist reload as things break badly with non primitive types
This will remove metadata on reload so it does not crash everything if a plugin uses it.

diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 68a40c12a9..86aa2ad322 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -795,8 +795,18 @@ public final class CraftServer implements Server {
             world.paperConfig.init(); // Paper
         }
 
+        Plugin[] pluginClone = pluginManager.getPlugins().clone(); // Paper
         pluginManager.clearPlugins();
         commandMap.clearCommands();
+
+        // Paper start
+        for (Plugin plugin : pluginClone) {
+            entityMetadata.removeAll(plugin);
+            worldMetadata.removeAll(plugin);
+            playerMetadata.removeAll(plugin);
+        }
+        // Paper end
+
         resetRecipes();
         reloadData();
         org.spigotmc.SpigotConfig.registerCommands(); // Spigot
-- 
2.21.0