hinzufügen der ClientList

src/main/java/ChatServer.java

@@ -2,9 +2,11 @@
 import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
+import java.util.List;
 
 public class ChatServer {
 	private ServerSocket serverSocket;
+	private List<ClientHandler> clients;
 
 	public ChatServer(int port) {
 		try {