How to set a filter for all datagram sessions?

[Joao]

   I 've used the below code to set a  a chainfilter .  Unfortunately,
   It is not working properly. I mean the filter has not been activated
   when the acceptor receives a message.
   What should I do to activate a filter for all sessions?

  IoAcceptorConfig config = new DatagramAcceptorConfig();
      DefaultIoFilterChainBuilder chain = config.getFilterChain();
    
      final ConcurrentMap <SocketAddress, Message> activeMessageList =
                          new ConcurrentHashMap<SocketAddress, Message>();
      chain.addFirst(
              "logger", new LoggingFilter() );

      chain.addLast(
               "myFilter", new MyFilter() );
     
       acceptor.bind(
               new InetSocketAddress( PORT ),
               new ConduitHandler( ), config);



   Thanks,

Joao,