Java Utililty Methods XML Document Create

Document doc = null;
try {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder;
    builder = builderFactory.newDocumentBuilder();
    doc = builder.newDocument();
} catch (ParserConfigurationException e) {
    e.printStackTrace();
...

try {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    builderFactory.setExpandEntityReferences(false);
    builderFactory.setValidating(false);
    builderFactory.setNamespaceAware(true);
    builderFactory.setIgnoringComments(true);
    builderFactory.setCoalescing(true);
    builderFactory.setIgnoringElementContentWhitespace(true);
...

try {
    return DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
} catch (ParserConfigurationException e) {
    e.printStackTrace();
} catch (FactoryConfigurationError e) {
    e.printStackTrace();
return null;
...

Document doc = null;
try {
    DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
    doc = docBuilder.newDocument();
    Element element = doc.getDocumentElement();
    if (element != null)
        element.normalize();
...

return createDocument(true);

try {
    DocumentBuilder documentBuilder = createDocumentBuilderFactory(null).newDocumentBuilder();
    return documentBuilder.newDocument();
} catch (ParserConfigurationException e) {
    throw new RuntimeException(e);

DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
return dBuilder.newDocument();

return createDocumentBuilder().newDocument();

final DocumentBuilder documentBuilder;
documentBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
return documentBuilder.newDocument();

Document doc = ourDocBuilder.newDocument();
return doc;