import java.io.File;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
public class Main {
public static void main(String[] argv) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true);
factory.setExpandEntityReferences(false);
Document doc = factory.newDocumentBuilder().parse(new File("filename"));
Element element = doc.getDocumentElement();
Element element2 = doc.createElement("newname");
NamedNodeMap attrs = element.getAttributes();
for (int i = 0; i < attrs.getLength(); i++) {
Attr attr2 = (Attr) doc.importNode(attrs.item(i), true);
element2.getAttributes().setNamedItem(attr2);
}
while (element.hasChildNodes()) {
element2.appendChild(element.getFirstChild());
}
element.getParentNode().replaceChild(element2, element);
}
}