code: public static void connect(Socket socket, 
        SocketAddress endpoint, 
        int timeout) throws IOException {
      connect(socket, endpoint, timeout, NOT_SET_IP_TOS);
    }
docs: This is a drop-in replacement for
  {@link Socket#connect(SocketAddress, int)}.
  In the case of normal sockets that don't have associated channels, this
  just invokes <code>socket.connect(endpoint, timeout)</code>. If
  <code>socket.getChannel()</code> returns a non-null channel,
  connect is implemented using Hadoop's selectors. This is done mainly
  to avoid Sun's connect implementation from creating thread-local
  selectors, since Hadoop does not have control on when these are closed
  and could end up taking all the available file descriptors.
  
  @see java.net.Socket#connect(java.net.SocketAddress, int)
  
  @param socket
  @param endpoint
  @param timeout - timeout in milliseconds