From 91983e16ebf3c267d6cc2211108b8d5d188c9e3d Mon Sep 17 00:00:00 2001
From: TheMode <themode@outlook.fr>
Date: Sun, 22 Aug 2021 14:29:46 +0200
Subject: [PATCH] Prevent the server from stopping twice

---
 src/main/java/net/minestom/server/MinecraftServer.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/minestom/server/MinecraftServer.java b/src/main/java/net/minestom/server/MinecraftServer.java
index 1d0314746..a5561302e 100644
--- a/src/main/java/net/minestom/server/MinecraftServer.java
+++ b/src/main/java/net/minestom/server/MinecraftServer.java
@@ -118,7 +118,7 @@ public final class MinecraftServer {
     // Data
     private static boolean initialized;
     private static boolean started;
-    private static boolean stopping;
+    private static volatile boolean stopping;
 
     private static int chunkViewDistance = 8;
     private static int entityViewDistance = 5;
@@ -709,6 +709,7 @@ public final class MinecraftServer {
      * Stops this server properly (saves if needed, kicking players, etc.)
      */
     public static void stopCleanly() {
+        if (stopping) return;
         stopping = true;
         LOGGER.info("Stopping Minestom server.");
         extensionManager.unloadAllExtensions();