/* Step 2 : Unmarshall XML to Object */
// Create an Unmarshaller
Unmarshaller unmarshaller = context.createUnmarshaller();
// Set listener
unmarshaller.setListener(new UnmarshallerListener());
// Unmarshall XML to Object
catalog = (Catalog) unmarshaller.unmarshal(sampleFile);
} catch (Exception e) {
e.printStackTrace();