code: public static final HttpClientAuthProvider forUserAndHost(final String host, final int port, final String login, final String password)
      {
          return new HttpClientDefaultAuthProvider(null, host, port, null, login, password);
      }
docs: Returns an {@link HttpClientAuthProvider} that will accept a specific remote host and presents
  the login and password as authentication credential.
  
  
  @param host The remote host for which the credentials are valid.
  @param port Port for the remote host.
  @param login Login to use.
  @param password Password to use.