private void initializeJAXB() {

		try {

			// Initialize JAXB
			JAXBContext jaxbContext = JAXBContext
					.newInstance(GateDocument.class.getPackage().getName());

			Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();

			// Retrieve Root Element
			root = (GateDocument) jaxbUnmarshaller.unmarshal(xmlFile);

		} catch (JAXBException e) {
			e.printStackTrace();
		}

	}