protected TokenResponse getTokenUrl(final String code) throws IOException {
        return new AuthorizationCodeTokenRequest(httpTransport, jsonFactory, new GenericUrl(getOicTokenServerUrl()), code)//
                .setGrantType("authorization_code")//
                .setRedirectUri(getOicRedirectUrl())//
                .set("client_id", getOicClientId())//
                .set("client_secret", getOicClientSecret())//
                .execute();