public class JAXBContextUtil { private static JAXBContext jaxbContext; private JAXBContextUtil() { } public static synchronized JAXBContext getContext() throws JAXBException { if (jaxbContext == null) { jaxbContext = JAXBContext.newInstance(YourClass.class); } return jaxbContext; } } JAXBContext jaxbContext = JAXBContext.newInstance(YourClass.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); XMLInputFactory xmlInputFactory = XMLInputFactory.newInstance(); XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(new FileInputStream("your_xml_file.xml")); YourClass yourObject = (YourClass) unmarshaller.unmarshal(xmlStreamReader);