Java tutorial
import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.Node; public class Main { public static void main(String[] args) throws Exception { DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); DocumentBuilder db = dbf.newDocumentBuilder(); Document originalDocument = db.parse(new File("input.xml")); Node originalRoot = originalDocument.getDocumentElement(); Document copiedDocument = db.newDocument(); Node copiedRoot = copiedDocument.importNode(originalRoot, true); copiedDocument.appendChild(copiedRoot); } }