From 0191a883fc0eb0f04dc568b03000e11b0687bba0 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Fri, 8 Aug 2014 19:57:03 +1000
Subject: [PATCH] Plug WorldMap Memory Leak


diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 1a49f164c..4c9a54239 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1022,6 +1022,30 @@ public class WorldServer extends World {
     }
 
     public void unregisterEntity(Entity entity) {
+        // Spigot start
+        if ( entity instanceof EntityHuman )
+        {
+            this.getMinecraftServer().worldServer.values().stream().map( WorldServer::getWorldPersistentData ).forEach( (worldData) ->
+            {
+                for (Object o : worldData.data.values() )
+                {
+                    if ( o instanceof WorldMap )
+                    {
+                        WorldMap map = (WorldMap) o;
+                        map.humans.remove( (EntityHuman) entity );
+                        for ( Iterator<WorldMap.WorldMapHumanTracker> iter = (Iterator<WorldMap.WorldMapHumanTracker>) map.i.iterator(); iter.hasNext(); )
+                        {
+                            if ( iter.next().trackee == entity )
+                            {
+                                iter.remove();
+                            }
+                        }
+                    }
+                }
+            } );
+        }
+        // Spigot end
+
         if (entity instanceof EntityEnderDragon) {
             EntityComplexPart[] aentitycomplexpart = ((EntityEnderDragon) entity).dT();
             int i = aentitycomplexpart.length;
-- 
2.20.1