From 5e758106631ef6319880888cf38ead080a7de9d9 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 28 Apr 2016 00:57:27 -0400
Subject: [PATCH] remove null possibility for getServer singleton

to stop IDE complaining about potential NPE

diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 57db59671..9562fde4c 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -68,6 +68,7 @@ import org.spigotmc.SlackActivityAccountant; // Spigot
 
 public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTask> implements IMojangStatistics, ICommandListener, AutoCloseable, Runnable {
 
+    private static MinecraftServer SERVER; // Paper
     public static final Logger LOGGER = LogManager.getLogger();
     public static final File b = new File("usercache.json");
     private static final CompletableFuture<Unit> i = CompletableFuture.completedFuture(Unit.INSTANCE);
@@ -175,6 +176,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
     public MinecraftServer(OptionSet options, Proxy proxy, DataFixer datafixer, CommandDispatcher commanddispatcher, YggdrasilAuthenticationService yggdrasilauthenticationservice, MinecraftSessionService minecraftsessionservice, GameProfileRepository gameprofilerepository, UserCache usercache, WorldLoadListenerFactory worldloadlistenerfactory, String s) {
         super("Server");
         this.ae = new ResourceManager(EnumResourcePackType.SERVER_DATA, this.serverThread);
+        SERVER = this; // Paper - better singleton
         this.resourcePackRepository = new ResourcePackRepository<>(ResourcePackLoader::new);
         this.ai = new CraftingManager();
         this.aj = new TagRegistry();
@@ -2117,7 +2119,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
 
     @Deprecated
     public static MinecraftServer getServer() {
-        return (Bukkit.getServer() instanceof CraftServer) ? ((CraftServer) Bukkit.getServer()).getServer() : null;
+        return SERVER; // Paper
     }
     // CraftBukkit end
 }
-- 
2.22.0