dom io xml parsers DocumentBuilder xml parsers DocumentBuilderFactory w3c dom w3c dom w3c dom bootstrap DOMImplementationRegistry w3c dom ls DOMImplementationLS w3c dom ls LSOutput w3c dom ls LSSerializer domgenerate argv documentbuilderfactory dbf documentbuilderfactory.newinstance dbf.setnamespaceaware documentbuilder db dbf.newdocumentbuilder doc db.newdocument root doc.createelementns item doc.createelementns item.appendchild doc.createtextnode root.appendchild item item doc.createelementns item.appendchild doc.createtextnode root.appendchild item item doc.createelementns item.appendchild doc.createtextnode root.appendchild item doc.appendchild root domimplementationregistry registry domimplementationregistry.newinstance domimplementationls domimplls domimplementationls registry.getdomimplementation lsserializer ser domimplls.createlsserializer lsoutput domimplls.createlsoutput stringout out.setcharacterstream stringout ser.write doc stringout.tostring ex ex.printstacktrace