From d09a45e281463742aa26b2f37f42411346161314 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 25dd732..de45d8b 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -730,6 +730,14 @@ public final class CraftServer implements Server {
             world.paperConfig.init(); // Paper
         }
 
+        // Paper start
+        for (Plugin plugin : pluginManager.getPlugins()) {
+            entityMetadata.removeAll(plugin);
+            worldMetadata.removeAll(plugin);
+            playerMetadata.removeAll(plugin);
+        }
+        // Paper end
+
         pluginManager.clearPlugins();
         commandMap.clearCommands();
         resetRecipes();
-- 
2.9.0