From c4a4479602cfd33eabe7178b9af9ee8c7aba855e Mon Sep 17 00:00:00 2001
From: Andrew Lalis <andrewlalisofficial@gmail.com>
Date: Fri, 5 Aug 2022 17:35:02 +0200
Subject: [PATCH] Fixed to make extra logic completely optional.

---
 .../src/main/java/nl/andrewl/aos2_server/Server.java  | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/server/src/main/java/nl/andrewl/aos2_server/Server.java b/server/src/main/java/nl/andrewl/aos2_server/Server.java
index 83ebafa..2481313 100644
--- a/server/src/main/java/nl/andrewl/aos2_server/Server.java
+++ b/server/src/main/java/nl/andrewl/aos2_server/Server.java
@@ -86,15 +86,18 @@ public class Server implements Runnable {
 		running = true;
 		new Thread(new UdpReceiver(datagramSocket, this::handleUdpMessage)).start();
 		new Thread(worldUpdater).start();
-		ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
-		var registryUpdater = new RegistryUpdater(this);
-		executorService.scheduleAtFixedRate(registryUpdater::sendUpdates, 0, 30, TimeUnit.SECONDS);
+		ScheduledExecutorService executorService = null;
+		if (config.registries != null && config.registries.length > 0) {
+			executorService = Executors.newSingleThreadScheduledExecutor();
+			var registryUpdater = new RegistryUpdater(this);
+			executorService.scheduleAtFixedRate(registryUpdater::sendUpdates, 0, 30, TimeUnit.SECONDS);
+		}
 		System.out.printf("Started AoS2 Server on TCP/UDP port %d; now accepting connections.%n", serverSocket.getLocalPort());
 		while (running) {
 			acceptClientConnection();
 		}
 		System.out.println("Shutting down the server.");
-		executorService.shutdown();
+		if (executorService != null) executorService.shutdown();
 		playerManager.deregisterAll();
 		worldUpdater.shutdown();
 		datagramSocket.close(); // Shuts down the UdpReceiver.