code: public static <T> String marshal(JAXBContext self, T jaxbElement) throws JAXBException {
          return marshal(self.createMarshaller(), jaxbElement);
      }
docs: Marshall an object to a xml {@code String}.
  
  @param self a JaxbContext, which recognizes the type of the given object
  @param jaxbElement object to marshall to a {@code String}
  @return String representing the object as xml