title: Java Kryonet [Class is not registered Exception ]
body: <p>I found this API called <a href="http://code.google.com/p/kryonet/" rel="nofollow">Kryonet</a>. Well, i tried to implement the example provided in the project page. However, it wasn't successful. </p>
  
  <p>Server code:</p>
  
  <pre><code>public class KryoTest {
  
  public KryoTest() throws IOException {
      Server server = new Server();
      server.start();
      server.bind(54555, 54777);
      server.addListener(new Listener() {
  
          public void received(Connection connection, Object object) {
              if (object instanceof SomeRequest) {
                  SomeRequest request = (SomeRequest) object;
                  System.out.println(request.text);
  
                  SomeResponse response = new SomeResponse();
                  response.text = "Thanks!";
                  connection.sendTCP(response);
              }
          }
      });
      Kryo kryo = server.getKryo();
      kryo.register(SomeRequest.class);
      kryo.register(SomeResponse.class);
  }
  
  public static void main(String[] args) throws IOException {
      new KryoTest();
  }}
  </code></pre>
  
  <p>Client Code:</p>
  
  <pre><code>    public class Kryoclient {
  
      public Kryoclient() throws IOException {
      Client client = new Client();
  client.start();
  client.connect(5000,"192.168.1.4", 54555, 54777);
  
  SomeRequest request = new SomeRequest();
  request.text = "Here is the request!";
  client.sendTCP(request);
  
   Kryo kryo = client.getKryo();
  kryo.register(SomeRequest.class);
  kryo.register(SomeResponse.class);
  
  }
      public static void main(String[] args) throws IOException {
          new Kryoclient();
      }
  }
  </code></pre>
  
  <p>Exception:</p>
  
  <pre><code>run:
  00:00  INFO: Connecting: /192.168.1.4:54555/54777
  00:00  INFO: [kryonet] Connection 1 connected: /192.168.1.4
  Exception in thread "main" java.lang.IllegalArgumentException: Class is not registered: client.SomeRequest
      at com.esotericsoftware.kryo.Kryo.getRegisteredClass(Kryo.java:319)
      at com.esotericsoftware.kryo.Kryo.writeClass(Kryo.java:374)
      at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:484)
      at com.esotericsoftware.kryonet.TcpConnection.send(TcpConnection.java:196)
      at com.esotericsoftware.kryonet.Connection.sendTCP(Connection.java:68)
      at client.Kryoclient.&lt;init&gt;(Kryoclient.java:24)
      at client.Kryoclient.main(Kryoclient.java:30)
  </code></pre>
  
  <p>What is wrong with this code? </p>