ComposedAdapterFactory adapterFactory = new 
ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);

		BasicCommandStack commandStack = new BasicCommandStack();

		mEditingDomain = new AdapterFactoryEditingDomain(adapterFactory, 
commandStack, new HashMap<Resource, Boolean>());

		IPreferenceStore lPreferenceStore = 
Activator.getDefault().getPreferenceStore();
		XMLResource lXMLResource = new XMLResourceImpl();

		String lPref = 
lPreferenceStore.getString(PreferenceConstants.P_VEHICLE_CHART_TYPE_ENGINE_ALL);
		StringReader lStringReader = new StringReader(lPref);
		InputSource lInputSource = new InputSource(lStringReader);
		Map<Object, Object> lOptions = new HashMap<Object, Object>();
		try {
			lXMLResource.load(lInputSource, lOptions);
		} catch (IOException e) {
			e.printStackTrace();
		}
		mVehicleSelection = EcoreUtil.copy((VehicleSelection) 
lXMLResource.getContents().get(0));

		IPreferenceStore lPreferenceStore = 
Activator.getDefault().getPreferenceStore();

		XMLResource lXMLResource = new XMLResourceImpl();
		Map<Object, Object> lOptions = new HashMap<Object, Object>();
		List<EObject> lRoot = new ArrayList<EObject>();
		lRoot.add(mVehicleSelection);
		lOptions.put(XMLResource.OPTION_ROOT_OBJECTS, lRoot);

		StringWriter lStringWriter = new StringWriter();
		URIConverter.WriteableOutputStream lUws = new 
URIConverter.WriteableOutputStream(lStringWriter, "UTF-8");
		try {
			lXMLResource.save(lUws, lOptions);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		String lPref = lStringWriter.toString();
	 
lPreferenceStore.setValue(PreferenceConstants.P_VEHICLE_CHART_TYPE_ENGINE_ALL, 
lPref);