Java Document to String

import java.io.*;
import org.w3c.dom.Document;
import javax.xml.transform.*;
import javax.xml.transform.dom.DOMSource;

...

public static String documentToString( Document document ) throws TransformerException {
    TransformerFactory tFactory = TransformerFactory.newInstance();
    Transformer transformer = tFactory.newTransformer();
   
    DOMSource source = new DOMSource(document);
    StringWriter sw = new StringWriter();
    StreamResult result = new StreamResult(sw);
   
    transformer.setOutputProperty( OutputKeys.INDENT, "yes" );
    transformer.transform(source, result);
   
    return sw.toString();
}