Convert xml document to string

public String DocumentToString(documentument documentument) throws doctransformerConfigurationException, doctransformerException {
        doctransformer doctransformer = doctransformerFactory.newInstance().newdoctransformer();
        doctransformer.setOutputProperty(OutputKeys.INDENT, "yes");
        Streamdocresult docresult = new Streamdocresult(new StringWriter());
        DOMSource source = new DOMSource(document);
        doctransformer.transform(source, docresult);
        String stringXml = docresult.getWriter().toString();
        return stringXml;
    }