If all players leave during a plugin update, the server restarts.

src/plugin.yml

@@ -1,6 +1,6 @@
 name: TwosideKeeper
 main: sig.plugin.TwosideKeeper.TwosideKeeper
-version: 3.5.4
+version: 3.5.4r1
 commands:
    money:
       description: Tells the player the amount of money they are holding.

src/sig/plugin/TwosideKeeper/AutoUpdatePlugin.java

@@ -75,7 +75,7 @@ public class AutoUpdatePlugin implements Runnable {
 				plugins.get(i).hash = md5;
 				SaveHash(plugins.get(i));
 				DiscordMessageSender.sendItalicizedRawMessageDiscord("The server has detected a new version of "+ChatColor.YELLOW+plugins.get(i).name+". The server will restart in 3 minutes!");
-				Bukkit.broadcastMessage("The server has detected a new version of "+ChatColor.YELLOW+plugins.get(i).name+". The server will restart in 3 minutes!");
+				Bukkit.broadcastMessage("The server has detected a new version of "+ChatColor.YELLOW+plugins.get(i).name+". The server will restart in 3 minutes!\n\n"+ChatColor.GRAY+ChatColor.ITALIC+"If all players leave, the update will occur immediately.");
 				//Move the file to the new location.
 				/*try {
 					FileUtils.copyFile(new File(TwosideKeeper.filesave,"updates/"+plugins.get(i).name),

src/sig/plugin/TwosideKeeper/TwosideKeeper.java

@@ -1102,6 +1102,15 @@ public class TwosideKeeper extends JavaPlugin implements Listener {
     		}
     	}
     	
+    	if (Bukkit.getOnlinePlayers().size()==1 && restarting_server) {
+			Bukkit.savePlayers();
+			DiscordMessageSender.sendItalicizedRawMessageDiscord("All players have disconnected. Server is shutting down...");
+			for (int i=0;i<Bukkit.getWorlds().size();i++) {
+				Bukkit.getWorlds().get(i).save();
+			}
+			Bukkit.shutdown();
+    	}
+    	
     	//Find the player that is getting removed.
     	PlayerStructure pd = (PlayerStructure)playerdata.get(ev.getPlayer().getUniqueId());
 		//Make sure to save the config for this player.