code: protected HttpAction redirectToIdentityProvider(final C context, final List<Client> currentClients) {
          final IndirectClient currentClient = (IndirectClient) currentClients.get(0);
          return (HttpAction) currentClient.redirect(context).get();
      }
docs: Perform a redirection to start the login process of the first indirect client.
  
  @param context the web context
  @param currentClients the current clients
  @return the performed redirection