Updated GitHub repository. Added ClassCastException check to ForgeHandshake.sendModList method. Added Bungee component startup message. Added Velocity component startup message. Changed plugin version to 2.5.7.

Author: BuildTools

src/main/java/de/sportkanone123/clientdetector/bungeecord/ClientDetectorBungee.java

@@ -18,6 +18,7 @@
 
 package de.sportkanone123.clientdetector.bungeecord;
 
+import net.md_5.bungee.api.ChatColor;
 import net.md_5.bungee.api.ProxyServer;
 import net.md_5.bungee.api.config.ServerInfo;
 import net.md_5.bungee.api.event.PlayerDisconnectEvent;
@@ -43,6 +44,13 @@ public void onEnable() {
         ProxyServer.getInstance().registerChannel("cd:bungee");
 
         runQueue();
+
+        plugin.getLogger().info(ChatColor.translateAlternateColorCodes('&', "&7-----------------------------------------"));
+        plugin.getLogger().info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] (&aVersion&7) &aDetected Version &c" + ProxyServer.getInstance().getVersion()));
+        plugin.getLogger().info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] (&aDetection&7) &aLoading Bungee adapter..."));
+        plugin.getLogger().info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] (&aDetection&7) &aRegistering plugin messaging channels..."));
+        plugin.getLogger().info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] &aStarted!"));
+        plugin.getLogger().info(ChatColor.translateAlternateColorCodes('&', "&7-----------------------------------------"));
     }
 
     public void runQueue() {

src/main/java/de/sportkanone123/clientdetector/spigot/forgemod/legacy/ForgeHandshake.java

@@ -23,6 +23,8 @@
 import com.github.retrooper.packetevents.manager.server.ServerVersion;
 import com.github.retrooper.packetevents.protocol.player.ClientVersion;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerPluginMessage;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
 import org.bukkit.entity.Player;
 
 public class ForgeHandshake {
@@ -69,10 +71,14 @@ public static void sendHandshakeReset(Player player, String channel){
     }
 
     public static void sendHandshake(Player player){
-        if(PacketEvents.getAPI().getServerManager().getVersion().isOlderThanOrEquals(ServerVersion.V_1_12_2) && (PacketEvents.getAPI().getPlayerManager().getClientVersion(player).isNewerThanOrEquals(ClientVersion.V_1_8) && PacketEvents.getAPI().getPlayerManager().getClientVersion(player).isOlderThanOrEquals(ClientVersion.V_1_12_2))){
-            sendHandshakeReset(player, "FML|HS");
-            sendServerHello(player, "FML|HS");
-            sendModList(player, "FML|HS");
+        try {
+            if(PacketEvents.getAPI().getServerManager().getVersion().isOlderThanOrEquals(ServerVersion.V_1_12_2) && (PacketEvents.getAPI().getPlayerManager().getClientVersion(player).isNewerThanOrEquals(ClientVersion.V_1_8) && PacketEvents.getAPI().getPlayerManager().getClientVersion(player).isOlderThanOrEquals(ClientVersion.V_1_12_2))){
+                sendHandshakeReset(player, "FML|HS");
+                sendServerHello(player, "FML|HS");
+                sendModList(player, "FML|HS");
+            }
+        }catch (ClassCastException e){
+            Bukkit.getConsoleSender().sendMessage(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] &4(ERROR) &aClassCastException thrown while getting forge mod list from connecting player. This error is harmless and safe to ignore :)"));
         }
     }
 }

src/main/java/de/sportkanone123/clientdetector/spigot/forgemod/newerversion/ForgeHandshake.java

@@ -20,12 +20,17 @@
 
 import com.github.retrooper.packetevents.PacketEvents;
 import com.github.retrooper.packetevents.wrapper.login.server.WrapperLoginServerPluginRequest;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
 
 public class ForgeHandshake {
     public static void sendModList(Object channel){
 
-        WrapperLoginServerPluginRequest wrappedPacketLoginOutCustomPayload = new WrapperLoginServerPluginRequest(/*Random ID*/111111, "fml:handshake", new byte[] { 1, 0, 0, 0 });
-        PacketEvents.getAPI().getPlayerManager().sendPacket(channel, wrappedPacketLoginOutCustomPayload);
-
+        try {
+            WrapperLoginServerPluginRequest wrappedPacketLoginOutCustomPayload = new WrapperLoginServerPluginRequest(/*Random ID*/111111, "fml:handshake", new byte[] { 1, 0, 0, 0 });
+            PacketEvents.getAPI().getPlayerManager().sendPacket(channel, wrappedPacketLoginOutCustomPayload);
+        }catch (ClassCastException e){
+            Bukkit.getConsoleSender().sendMessage(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] &4(ERROR) &aClassCastException thrown while getting forge mod list from connecting player. This error is harmless and safe to ignore :)"));
+        }
     }
 }

src/main/java/de/sportkanone123/clientdetector/velocity/ClientDetectorVelocity.java

@@ -10,6 +10,7 @@
 import com.velocitypowered.api.proxy.messages.LegacyChannelIdentifier;
 import com.velocitypowered.api.proxy.messages.MinecraftChannelIdentifier;
 import com.velocitypowered.api.proxy.server.RegisteredServer;
+import net.md_5.bungee.api.ChatColor;
 
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
@@ -51,6 +52,13 @@ public void onProxyInitialization(ProxyInitializeEvent event) {
         this.server.getChannelRegistrar().register(LEGACY_BUNGEE_CHANNEL, MODERN_BUNGEE_CHANNEL);
 
         runQueue();
+
+        logger.info(ChatColor.translateAlternateColorCodes('&', "&7-----------------------------------------"));
+        logger.info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] (&aVersion&7) &aDetected Version &c" + server.getVersion()));
+        logger.info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] (&aDetection&7) &aLoading Velocity adapter..."));
+        logger.info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] (&aDetection&7) &aRegistering plugin messaging channels..."));
+        logger.info(ChatColor.translateAlternateColorCodes('&', "&7[&3ClientDetector&7] &aStarted!"));
+        logger.info(ChatColor.translateAlternateColorCodes('&', "&7-----------------------------------------"));
     }
 
     public void runQueue() {
@@ -73,7 +81,7 @@ public void run() {
 
     @Subscribe
     public void onPluginMessage(PluginMessageEvent event) {
-        System.out.println(event.getIdentifier() + " // " + new java.lang.String(event.getData()));
+        logger.info(event.getIdentifier() + " // " + new java.lang.String(event.getData()));
         if (event.getIdentifier().getId().equalsIgnoreCase("cd:bungee")) {
             sync(event.getData());
         }

src/main/resources/bungee.yml

@@ -1,5 +1,5 @@
 name: ClientDetector
 version: 2.5.7
-author: Sportkanone123
+author: Loving11ish
 main: de.sportkanone123.clientdetector.bungeecord.ClientDetectorBungee
 description: A simple plugin to detect and manage a player's client/mods