Java Utililty Methods XML DocumentBuilder Create

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
return factory.newDocumentBuilder();

return builderThreadLocal.get();

if (documentBuilder == null) {
    documentBuilder = newDocumentBuilder();
return documentBuilder;

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
return dbf.newDocumentBuilder();

DocumentBuilder builder = null;
if (builderFactory == null) {
    builderFactory = DocumentBuilderFactory.newInstance();
    builderFactory.setNamespaceAware(true);
try {
    builder = builderFactory.newDocumentBuilder();
} catch (ParserConfigurationException e) {
...

DocumentBuilder db = null;
try {
    final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setCoalescing(true);
    dbf.setExpandEntityReferences(true);
    dbf.setIgnoringComments(false);
    dbf.setIgnoringElementContentWhitespace(true);
    dbf.setNamespaceAware(true);
...

DocumentBuilder domBuilder = (DocumentBuilder) domBuilders.get(Thread.currentThread());
if (domBuilder != null) {
    return domBuilder;
} else {
    try {
        domBuilder = domBuilderFactory.newDocumentBuilder();
        domBuilders.put(Thread.currentThread(), domBuilder);
        return domBuilder;
...

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
return dbf.newDocumentBuilder();

try {
    return getDocumentBuilderFactory().newDocumentBuilder();
} catch (ParserConfigurationException e) {
    throw new IllegalStateException("Could not create DocumentBuilder", e);

DocumentBuilderFactory factory = null;
DocumentBuilder builder = null;
try {
    factory = DocumentBuilderFactory.newInstance();
} catch (FactoryConfigurationError e) {
    throw new Exception("XmlUtil.parse() : Cannot create DocumentBuilderFactory ", e);
} catch (Throwable t) {
    throw new Exception("XmlUtil.parse() : Cannot create DocumentBuilderFactory ", t);
...