diff --git a/src/de/steamwar/network/packets/NetworkHandler.java b/src/de/steamwar/network/packets/NetworkHandler.java
index cd068d0..926d3f7 100644
--- a/src/de/steamwar/network/packets/NetworkHandler.java
+++ b/src/de/steamwar/network/packets/NetworkHandler.java
@@ -22,7 +22,7 @@ package de.steamwar.network.packets;
 import de.steamwar.network.packets.common.FightInfoPacket;
 import de.steamwar.network.packets.common.FightEndsPacket;
 
-public interface NetworkHandler {
-    void handle(FightEndsPacket packet);
-    void handle(FightInfoPacket packet);
+public abstract class NetworkHandler {
+    public void handle(FightEndsPacket packet) {};
+    public void handle(FightInfoPacket packet) {};
 }
diff --git a/src/de/steamwar/network/packets/client/ClientNetworkHandler.java b/src/de/steamwar/network/packets/client/ClientNetworkHandler.java
index c8b7434..6698fe1 100644
--- a/src/de/steamwar/network/packets/client/ClientNetworkHandler.java
+++ b/src/de/steamwar/network/packets/client/ClientNetworkHandler.java
@@ -19,12 +19,13 @@
 
 package de.steamwar.network.packets.client;
 
+import de.steamwar.network.packets.NetworkHandler;
 import de.steamwar.network.packets.server.*;
 
-public interface ClientNetworkHandler {
-    void handle(BaumemberUpdatePacket packet);
-    void handle(CloseInventoryPacket packet);
-    void handle(InventoryPacket packet);
-    void handle(PingPacket packet);
-    void handle(StartingServerPacket packet);
+public abstract class ClientNetworkHandler extends NetworkHandler {
+    public void handle(BaumemberUpdatePacket packet) {};
+    public void handle(CloseInventoryPacket packet) {};
+    public void handle(InventoryPacket packet) {}
+    public void handle(PingPacket packet) {}
+    public void handle(StartingServerPacket packet) {}
 }
diff --git a/src/de/steamwar/network/packets/common/FightInfoPacket.java b/src/de/steamwar/network/packets/common/FightInfoPacket.java
index d0f416b..1d9e1e5 100644
--- a/src/de/steamwar/network/packets/common/FightInfoPacket.java
+++ b/src/de/steamwar/network/packets/common/FightInfoPacket.java
@@ -28,20 +28,20 @@ import java.util.List;
 public class FightInfoPacket extends CommonPacket{
 
     private static final long serialVersionUID = 7448644597856605853L;
-    private String serverName; // Name of the Server
-    private String gameMode; // GameMode aka Schematictype (if known, else "")
-    private String arena; // Name of the arena
-    private String blueName; // Name of the blue team, expected to begin with "§a" colorcode
-    private String redName; // Name of the red team, expected to begin with "§a" colorcode
-    private String fightState; // Fight state (technical term) (if known, else "")
-    private int countdown; // Countdown state in seconds (if known, else 0)
-    private int blueLeader; // SWUserID of the blue team leader (if known, else 0)
-    private int redLeader; // SWUserID of the red team leader (if known, else 0)
-    private int blueSchem; // Blue SchemID (if known, else 0)
-    private int redSchem; // Red SchemID (if known, else 0)
-    private List<Integer> bluePlayers; // List of Blue SWUserIDs
-    private List<Integer> redPlayers; // List of Red SWUserIDs
-    private List<Integer> spectators; // List of Spectator SWUserIDs
+    private String serverName;
+    private String gameMode;
+    private String arena;
+    private String blueName;
+    private String redName;
+    private String fightState;
+    private int countdown;
+    private int blueLeader;
+    private int redLeader;
+    private int blueSchem;
+    private int redSchem;
+    private List<Integer> bluePlayers;
+    private List<Integer> redPlayers;
+    private List<Integer> spectators;
 
     @Override
     public void handle(NetworkHandler handler) {
diff --git a/src/de/steamwar/network/packets/server/ServerNetworkHandler.java b/src/de/steamwar/network/packets/server/ServerNetworkHandler.java
index 0a8cb7c..c418380 100644
--- a/src/de/steamwar/network/packets/server/ServerNetworkHandler.java
+++ b/src/de/steamwar/network/packets/server/ServerNetworkHandler.java
@@ -19,12 +19,13 @@
 
 package de.steamwar.network.packets.server;
 
+import de.steamwar.network.packets.NetworkHandler;
 import de.steamwar.network.packets.client.*;
 
-public interface ServerNetworkHandler {
-    void handle(ExecuteCommandPacket packet);
-    void handle(ImALobbyPacket packet);
-    void handle(InventoryCallbackPacket packet);
-    void handle(PrepareSchemPacket packet);
-    void handle(TablistNamePacket packet);
+public abstract class ServerNetworkHandler extends NetworkHandler {
+    public void handle(ExecuteCommandPacket packet) {};
+    public void handle(ImALobbyPacket packet) {}
+    public void handle(InventoryCallbackPacket packet) {}
+    public void handle(PrepareSchemPacket packet) {}
+    public void handle(TablistNamePacket packet) {}
 }