Umarshalling JSON and XML

If you want to unmarshall json or xml inputstream to Java object, here are the functions :

public static <T> T unmarshalXML(InputStream is, Class<T> c)
   throws JAXBException {
  JAXBContext jc = JAXBContext.newInstance(c);
  Unmarshaller u = jc.createUnmarshaller();
  T response = (T) u.unmarshal(is);
  return response;
 }

 public static <T> T unmarshalJSON(InputStream is, Class<T> c)
   throws JAXBException, IOException, JSONException, XMLStreamException {
  JAXBContext jc = JAXBContext.newInstance(c);
  Unmarshaller u = jc.createUnmarshaller();
  String sJson = IOUtils.toString(is);
  JSONObject obj = new JSONObject(sJson);
  Configuration config = new Configuration();
  MappedNamespaceConvention con = new MappedNamespaceConvention(config);
  XMLStreamReader xmlStreamReader = new MappedXMLStreamReader(obj, con);
  T response = (T) u.unmarshal(xmlStreamReader);
  return response;
 }