giga test cases

            JAXBContext jaxbContext = JAXBContext.newInstance(XmlBundles.class);

            Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();

            // LOG.info("Konvertiert: {}", xsltConvertedXmlOutput);

            InputStream convertedXmlInputStream = new ByteArrayInputStream(xsltConvertedXmlOutput.getBytes(StandardCharsets.UTF_8) );

            XmlBundles xmlBundles = (XmlBundles) unmarshaller.unmarshal(convertedXmlInputStream);

            Stream<Bundle> bundlesStream = xmlBundles.getBundlesStream();