// Calculate string to sign.
	alg := signV4ChunkedAlgorithm + "\n"
	stringToSign := alg +
		cr.seedDate.Format(iso8601Format) + "\n" +
		getScope(cr.seedDate, cr.region) + "\n" +
		cr.seedSignature + "\n" +
		emptySHA256 + "\n" +
		hashedChunk

	// Get hmac signing key.
	signingKey := getSigningKey(cr.cred.SecretKey, cr.seedDate, cr.region, serviceS3)

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

            throw new CrawlingAccessException("No response body.");
        }

        final ResultData resultData = new ResultData();
        resultData.setTransformerName(getName());
        try {
            resultData.setData(SerializeUtil.fromObjectToBinary(generateData(responseData)));
        } catch (final Exception e) {
            throw new CrawlingAccessException("Could not serialize object", e);
        }

            }
        }

        putAdditionalData(dataMap, responseData, document);
        normalizeData(responseData, dataMap);

        try {
            resultData.setData(SerializeUtil.fromObjectToBinary(dataMap));
        } catch (final Exception e) {
            throw new CrawlingAccessException("Could not serialize object: " + responseData.getUrl(), e);
        }