question: public static Marshaller createMarshaller ( Class < ? > clazz , NamespacePrefixMapper mpr ) throws Exception { Marshaller marshaller = createMarshaller ( clazz ) ; marshaller . setProperty ( "com.sun.xml.bind.namespacePrefixMapper" , mpr ) ; marshaller . setProperty ( Marshaller . JAXB_FRAGMENT , Boolean . TRUE ) ; return marshaller ; }
target:  Creates a marshaller for the given class and namespace prefix mapper.