Java Utililty Methods XML JAXB Unmarshaller

JAXBContext ctx = JAXBContext.newInstance(context);
Unmarshaller unMarshaller = ctx.createUnmarshaller();
JAXBElement<T> object = (JAXBElement<T>) unMarshaller.unmarshal(new File(file));
return object.getValue();

JAXBContext context = JAXBContext.newInstance(classesToBeBound);
Unmarshaller unmarshaller = context.createUnmarshaller();
StringReader reader = new StringReader(xml);
return unmarshaller.unmarshal(reader);

JAXBContext ctx = JAXBContext.newInstance(clazz);
Unmarshaller m = ctx.createUnmarshaller();
StringReader reader = new StringReader(HEADER + xml);
return (T) m.unmarshal(reader);

JAXBContext context = JAXBContext.newInstance(classesToBeBound);
Unmarshaller unmarshaller = context.createUnmarshaller();
if (schemaURL != null) {
    SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
    Schema schema = sf.newSchema(schemaURL);
    unmarshaller.setSchema(schema);
StringReader reader = new StringReader(xml);
...

Unmarshaller unmarshaller = createUnmarshaller(entityType);
return (T) unmarshaller.unmarshal(in);

JAXBContext jc;
Unmarshaller unmarshaller;
Object o = null;
try {
    jc = JAXBContext.newInstance(T);
    unmarshaller = jc.createUnmarshaller();
    o = unmarshaller.unmarshal(new StreamSource(new StringReader(xml)));
} catch (JAXBException e) {
...

if (v == null) {
    return null;
} else {
    return v.getValue();

Object request = null;
try {
    Unmarshaller um = getRequestContext().createUnmarshaller();
    request = um.unmarshal(new ByteArrayInputStream(xmlString.getBytes()));
} catch (JAXBException je) {
    je.printStackTrace();
return request;
...

initUnmarshaller(c);
ByteArrayInputStream bis = new ByteArrayInputStream(str.getBytes());
return (T) um.unmarshal(bis);

return unmarschall(string, type, null);