builder.setCredentials(ServiceAccountCredentials.fromStream(is));
                    }
                }
                // If no credentials file or endpoint, GoogleCredentials.getApplicationDefault() will be used

                storage = builder.build().getService();
                connected = true;
            } catch (final Exception e) {

                    throw new CrawlingAccessException("Failed to load GCS credentials: credentialsFile=" + credentialsFile, e);
                }
            }
            // If no credentials file, GoogleCredentials.getApplicationDefault() will be used automatically
        }

        try {
            storage = builder.build().getService();
        } catch (final Exception e) {