Paper/CraftBukkit-Patches/0141-Plug-WorldMap-Memory-Leak.patch

From 4deba65347bce03f23bd62f6d69f177c7caabb99 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/PersistentCollection.java b/src/main/java/net/minecraft/server/PersistentCollection.java
index 4b8d548..451f481 100644
--- a/src/main/java/net/minecraft/server/PersistentCollection.java
+++ b/src/main/java/net/minecraft/server/PersistentCollection.java
@@ -18,7 +18,7 @@ public class PersistentCollection {
 
     private IDataManager b;
     protected Map<String, PersistentBase> a = Maps.newHashMap();
-    private List<PersistentBase> c = Lists.newArrayList();
+    public List<PersistentBase> c = Lists.newArrayList(); // Spigot
     private Map<String, Short> d = Maps.newHashMap();
 
     public PersistentCollection(IDataManager idatamanager) {
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 464b243..2c947ca 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1084,6 +1084,23 @@ public abstract class World implements IBlockAccess {
         entity.die();
         if (entity instanceof EntityHuman) {
             this.players.remove(entity);
+            // Spigot start
+            for ( Object o : worldMaps.c )
+            {
+                if ( o instanceof WorldMap )
+                {
+                    WorldMap map = (WorldMap) o;
+                    map.i.remove( entity );
+                    for ( Iterator<WorldMap.WorldMapHumanTracker> iter = (Iterator<WorldMap.WorldMapHumanTracker>) map.g.iterator(); iter.hasNext(); )
+                    {
+                        if ( iter.next().trackee == entity )
+                        {
+                            iter.remove();
+                        }
+                    }
+                }
+            }
+            // Spigot end
             this.everyoneSleeping();
             this.b(entity);
         }
diff --git a/src/main/java/net/minecraft/server/WorldMap.java b/src/main/java/net/minecraft/server/WorldMap.java
index 0e03164..9772760 100644
--- a/src/main/java/net/minecraft/server/WorldMap.java
+++ b/src/main/java/net/minecraft/server/WorldMap.java
@@ -22,7 +22,7 @@ public class WorldMap extends PersistentBase {
     public byte scale;
     public byte[] colors = new byte[16384];
     public List<WorldMap.WorldMapHumanTracker> g = Lists.newArrayList();
-    private Map<EntityHuman, WorldMap.WorldMapHumanTracker> i = Maps.newHashMap();
+    public Map<EntityHuman, WorldMap.WorldMapHumanTracker> i = Maps.newHashMap(); // Spigot
     public Map<String, MapIcon> decorations = Maps.newLinkedHashMap();
 
     // CraftBukkit start
-- 
2.1.4