Paper/Spigot-Server-Patches/0051-Change-implementation-of-tile-entity-removal-list.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Joseph Hirschfeld <joe@ibj.io>
Date: Thu, 3 Mar 2016 02:39:54 -0600
Subject: [PATCH] Change implementation of (tile)entity removal list

use sets for faster removal

diff --git a/src/main/java/net/minecraft/world/level/World.java b/src/main/java/net/minecraft/world/level/World.java
index 26d9388badb0328735abf0319a42bd633c90dc4b..33469b719d679c65d4bcb8366008e6e107eb3a0b 100644
--- a/src/main/java/net/minecraft/world/level/World.java
+++ b/src/main/java/net/minecraft/world/level/World.java
@@ -89,7 +89,7 @@ public abstract class World implements GeneratorAccess, AutoCloseable {
     public final List<TileEntity> tileEntityList = Lists.newArrayList();
     public final List<TileEntity> tileEntityListTick = Lists.newArrayList();
     protected final List<TileEntity> tileEntityListPending = Lists.newArrayList();
-    protected final List<TileEntity> tileEntityListUnload = Lists.newArrayList();
+    protected final java.util.Set<TileEntity> tileEntityListUnload = com.google.common.collect.Sets.newHashSet();
     public final Thread serverThread;
     private final boolean debugWorld;
     private int d;