JAXB: use namespaces

Problem:
I want to use jaxb to generate a xsl file from xsd file.
The xsd file contains, in addition to the default namespace (DEFAULT_NAMESPACE), another namespace (MY_NAMESPACE) which is not used in xsd but it will be used in the xsl.
The generator does not copy MY_NAMESPACE, so the xsl file is no longer valid.

Solution:
One proposed solution is to use NamespacePrefixMapper

       
  final Marshaller marshaller = JAXBContext.newInstance(MyObjectFactory.class)

      .createMarshaller();

   marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

  marshaller.setProperty("com.sun.xml.bind.namespacePrefixMapper",

  new NamespacePrefixMapper() {

         @Override

        public String[] getPreDeclaredNamespaceUris() {

          return new String[] { MY_NAMESPACE };

        }

         @Override

        public String getPreferredPrefix(final String namespaceUri,

        final String suggestion, final boolean requirePrefix) {

          if (namespaceUri.equals(MY_NAMESPACE)) {

             return MY_NAMESPACE_PREFIX;

          }

          return suggestion;

         }

    });

Xsd example:

       
  <?xml version="1.0" encoding="UTF-8"?>

   <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" 

          targetNamespace="http://www.w3.org/1999/XSL/Transform"

          xmlns:tns="http://www.w3.org/1999/XSL/Transform" 

         elementFormDefault="qualified" 

        xmlns:s="http://www.w3.org/2000/sss">

      <xs:element name="stylesheet" type="tns:Stylesheet"></xs:element>

       <xs:complexType name="Stylesheet">

       <xs:attribute name="name" type="xs:string"></xs:attribute>

       <xs:attribute name="select" type="xs:string"></xs:attribute>

     </xs:complexType>     </xs:schema>
       
     
    

when I use jaxb to generate xsl, I do not get the namespace xmlns:s="http://www.w3.org/2000/sss". Which is util for xsl.
So the usefulness of this article