PaperMC/Spigot-Server-Patches/0054-Don-t-create-a-chunk-just-to-unload-it.patch

From 4523f4c601e523971012b1a5b50c40704f74fdc6 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 2 Mar 2016 23:55:20 -0600
Subject: [PATCH] Don't create a chunk just to unload it


diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 83e3003..3f2d83a 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -205,7 +205,12 @@ public class CraftWorld implements World {
             return false;
         }
 
-        net.minecraft.server.Chunk chunk = world.getChunkProviderServer().getChunkAt(x, z);
+        // Paper start - Don't create a chunk just to unload it
+        net.minecraft.server.Chunk chunk = world.getChunkProviderServer().getChunkIfLoaded(x, z);
+        if (chunk == null) {
+            return false;
+        }
+        // Paper end
         if (chunk.mustSave) {   // If chunk had previously been queued to save, must do save to avoid loss of that data
             save = true;
         }
-- 
2.8.0