HttpTransport transport = GoogleNetHttpTransport.newTrustedTransport();
        JsonFactory jsonFactory = new GsonFactory();
        Storage.Builder builder = new Storage.Builder(transport, jsonFactory, null);
        if (gcsConnectionProperties.requiresAuthentication()) {
            Supplier<Credential> credentialSupplier = getCredentialSupplier(transport, jsonFactory);

    protected static final String OIC_STATE = "OIC_STATE";

    protected final HttpTransport httpTransport = new NetHttpTransport();

    protected final JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }