Fix reloading Geyser

bootstrap/fabric/Jenkinsfile

@@ -9,7 +9,7 @@ pipeline {
     stages {
         stage ('Build') {
             steps {
-                sh './gradlew clean build'
+                sh './gradlew clean build --refresh-dependencies'
             }
             post {
                 success {

bootstrap/fabric/src/main/java/org/geysermc/platform/fabric/GeyserFabricMod.java

@@ -97,9 +97,27 @@ public class GeyserFabricMod implements DedicatedServerModInitializer, GeyserBoo
 
         GeyserConfiguration.checkGeyserConfiguration(geyserConfig, geyserLogger);
 
+        if (server == null) {
+            // Server has yet to start
+            // Set as an event so we can get the proper IP and port if needed
             ServerLifecycleEvents.SERVER_STARTED.register((server) -> {
-            // Required to do this so we can get the proper IP and port if needed
                 this.server = server;
+                startGeyser();
+            });
+
+            // Register onDisable so players are properly kicked
+            ServerLifecycleEvents.SERVER_STOPPING.register((server) -> onDisable());
+        } else {
+            // Server has started and this is a reload
+            startGeyser();
+        }
+    }
+
+    /**
+     * Initialize core Geyser.
+     * A function, as it needs to be called in different places depending on if Geyser is being reloaded or not.
+     */
+    public void startGeyser() {
         if (this.geyserConfig.getRemote().getAddress().equalsIgnoreCase("auto")) {
             this.geyserConfig.setAutoconfiguredRemote(true);
             String ip = server.getServerIp();
@@ -131,16 +149,13 @@ public class GeyserFabricMod implements DedicatedServerModInitializer, GeyserBoo
                     !playerCommands.contains(command.getKey()))));
         }
         server.getCommandManager().getDispatcher().register(builder);
-        });
-
-        // Register onDisable so players are properly kicked
-        ServerLifecycleEvents.SERVER_STOPPING.register((server) -> onDisable());
     }
 
     @Override
     public void onDisable() {
         if (connector != null) {
             connector.shutdown();
+            connector = null;
         }
     }