marshaller.setProperty("com.sun.xml.bind.indentString", " ");
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
StringWriter writer = new StringWriter();
NamespacePrefixMapper mapper = new NamespacePrefixMapper()
{
public String getPreferredPrefix(String namespace, String s1, boolean b)
{
if (namespace.equals("http://www.w3.org/2005/Atom"))
{