XStream xstream = new XStream(new DomDriver());
xstream.setMode(XStream.NO_REFERENCES);
xstream.alias("document-format", DocumentFormat.class);
xstream.aliasField("mime-type", DocumentFormat.class, "mimeType");
xstream.aliasField("file-extension", DocumentFormat.class, "fileExtension");
xstream.aliasField("export-filters", DocumentFormat.class, "exportFilters");
xstream.aliasField("export-options", DocumentFormat.class, "exportOptions");
xstream.alias("family", DocumentFamily.class);
xstream.registerConverter(new AbstractBasicConverter(){
public boolean canConvert(Class type) {
return type.equals(DocumentFamily.class);