Java Utililty Methods XML Document to String

DocumentBuilderFactory domFact = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = domFact.newDocumentBuilder();
DOMSource domSource = new DOMSource(doc);
StringWriter writer = new StringWriter();
StreamResult result = new StreamResult(writer);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.transform(domSource, result);
...

StringWriter writer = new StringWriter();
Transformer transformer = TransformerFactory.newInstance().newTransformer();
if (prettyPrint) {
    transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.transform(new DOMSource(doc), new StreamResult(writer));
return writer.toString();
...

if (document == null)
    return null;
StringWriter stringWriter = new StringWriter();
try {
    identityTransformer.transform(new DOMSource(document), new StreamResult(stringWriter));
} catch (TransformerException e) {
    e.printStackTrace();
return stringWriter.toString();

try {
    Source src = new DOMSource(xmldoc);
    ByteArrayOutputStream bout = new ByteArrayOutputStream();
    TransformerFactory factory = TransformerFactory.newInstance();
    Transformer transformer = factory.newTransformer(); 
    transformer.transform(src, new StreamResult(bout));
    return bout.toString("UTF-8");
} catch (Exception e) {
...

StringWriter s = new StringWriter();
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
transformer.transform(new DOMSource(d), new StreamResult(s));
return s.toString();

Transformer transformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
StreamResult result = new StreamResult(new StringWriter());
DOMSource source = new DOMSource(d);
transformer.transform(source, result);
...

StreamResult result = new StreamResult(new StringWriter());
transform(doc, result);
String xmlString = result.getWriter().toString();
return xmlString;

TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(doc), new StreamResult(writer));
String xml = writer.getBuffer().toString().replaceAll("\n|\r", "");
return xml;

DOMSource domSource = new DOMSource(doc);
StringWriter writer = new StringWriter();
StreamResult result = new StreamResult(writer);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.transform(domSource, result);
return writer.toString();

StringWriter writer = new StringWriter();
getDOCUMENT_TRANSFORMER().transform(new DOMSource(doc), new StreamResult(writer));
return writer.toString();