Java Utililty Methods XML Node Transform

try {
    final StringWriter writer = new StringWriter();
    final DOMSource domSource = new DOMSource(node);
    final StreamResult streamResult = new StreamResult(writer);
    final TransformerFactory tf = TransformerFactory.newInstance();
    final Transformer serializer = tf.newTransformer();
    serializer.setOutputProperty(OutputKeys.INDENT, "yes");
    serializer.transform(domSource, streamResult);
...

if (node == null)
    return null;
try {
    StringWriter writer = new StringWriter();
    Transformer transformer = TransformerFactory.newInstance().newTransformer();
    transformer.transform(new DOMSource(node), new StreamResult(writer));
    final String s = writer.toString();
    if (stripHeader) {
...

if (node == null)
    return null;
try {
    StringWriter writer = new StringWriter();
    Transformer transformer = TransformerFactory.newInstance().newTransformer();
    transformer.transform(new DOMSource(node), new StreamResult(writer));
    return writer.toString();
} catch (Throwable e) {
...

TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(node);
StreamResult result = new StreamResult(out);
transformer.transform(source, result);

try {
    final Source source = new DOMSource(node);
    final Transformer xformer = TransformerFactory.newInstance().newTransformer();
    xformer.transform(source, result);
} catch (final TransformerConfigurationException e) {
} catch (final TransformerException e) {