Use Optionals for nullable values

bungee/src/main/java/com/github/games647/fastlogin/bungee/FastLoginBungee.java

@@ -1,8 +1,8 @@
 package com.github.games647.fastlogin.bungee;
 
 import com.github.games647.fastlogin.bungee.hooks.BungeeAuthHook;
-import com.github.games647.fastlogin.bungee.listener.ConnectionListener;
-import com.github.games647.fastlogin.bungee.listener.PluginMessageListener;
+import com.github.games647.fastlogin.bungee.listener.ConnectListener;
+import com.github.games647.fastlogin.bungee.listener.MessageListener;
 import com.github.games647.fastlogin.core.mojang.MojangApiConnector;
 import com.github.games647.fastlogin.core.shared.FastLoginCore;
 import com.github.games647.fastlogin.core.shared.PlatformPlugin;
@@ -38,8 +38,8 @@ public class FastLoginBungee extends Plugin implements PlatformPlugin<CommandSen
         }
 
         //events
-        getProxy().getPluginManager().registerListener(this, new ConnectionListener(this));
-        getProxy().getPluginManager().registerListener(this, new PluginMessageListener(this));
+        getProxy().getPluginManager().registerListener(this, new ConnectListener(this));
+        getProxy().getPluginManager().registerListener(this, new MessageListener(this));
 
         //this is required to listen to messages from the server
         getProxy().registerChannel(getDescription().getName());

bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/ConnectListener.java

@@ -31,11 +31,11 @@ import net.md_5.bungee.event.EventPriority;
  * plugin message to the Bukkit version of this plugin in
  * order to clear that the connection is online mode.
  */
-public class ConnectionListener implements Listener {
+public class ConnectListener implements Listener {
 
     private final FastLoginBungee plugin;
 
-    public ConnectionListener(FastLoginBungee plugin) {
+    public ConnectListener(FastLoginBungee plugin) {
         this.plugin = plugin;
     }
 
@@ -58,7 +58,7 @@ public class ConnectionListener implements Listener {
             return;
         }
 
-        //use the login event instead of the postlogin event in order to send the loginsuccess packet to the client
+        //use the login event instead of the post login event in order to send the login success packet to the client
         //with the offline uuid this makes it possible to set the skin then
         PendingConnection connection = loginEvent.getConnection();
         InitialHandler initialHandler = (InitialHandler) connection;

bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/MessageListener.java

@@ -19,11 +19,11 @@ import net.md_5.bungee.api.event.PluginMessageEvent;
 import net.md_5.bungee.api.plugin.Listener;
 import net.md_5.bungee.event.EventHandler;
 
-public class PluginMessageListener implements Listener {
+public class MessageListener implements Listener {
 
     private final FastLoginBungee plugin;
 
-    public PluginMessageListener(FastLoginBungee plugin) {
+    public MessageListener(FastLoginBungee plugin) {
         this.plugin = plugin;
     }
 
@@ -52,10 +52,10 @@ public class PluginMessageListener implements Listener {
         FastLoginCore<ProxiedPlayer, CommandSender, FastLoginBungee> core = plugin.getCore();
 
         ByteArrayDataInput dataInput = ByteStreams.newDataInput(data);
-        String subchannel = dataInput.readUTF();
-        if ("SUCCESS".equals(subchannel)) {
+        String subChannel = dataInput.readUTF();
+        if ("SUCCESS".equals(subChannel)) {
             onSuccessMessage(forPlayer);
-        } else if ("ON".equals(subchannel)) {
+        } else if ("ON".equals(subChannel)) {
             String playerName = dataInput.readUTF();
             boolean isPlayerSender = dataInput.readBoolean();
 
@@ -70,7 +70,7 @@ public class PluginMessageListener implements Listener {
             core.getPendingConfirms().remove(forPlayer.getUniqueId());
             Runnable task = new AsyncToggleMessage(core, forPlayer, playerName, true, isPlayerSender);
             ProxyServer.getInstance().getScheduler().runAsync(plugin, task);
-        } else if ("OFF".equals(subchannel)) {
+        } else if ("OFF".equals(subChannel)) {
             String playerName = dataInput.readUTF();
             boolean isPlayerSender = dataInput.readBoolean();