> <code>Con</code>: Connection to a Stomp broker
</li><li> <code>String</code>: Name of the Server, which can be used for error reporting.
</li><li> <code>ReaderDesc</code> i: Description of a reader queue;
                     this is the queue through which clients
                     are expected to send requests.
</li><li> <code>WriterDesc</code> o: Description of a writer queue;
                     this is the queue through which
                     a specific client will expect the reply.
         