@Override
	public void callLogOut(String username) {
		Service service = new Service();
		Call call;
		try {
			call = (Call)service.createCall();
			Object[] inParams = new Object[]{username};
			
			call.setTargetEndpointAddress(new URL(SERVICES_URL));
			
			call.setTargetEndpointAddress(SERVICES_URL);
			call.setOperationName(new QName(LOG_OUT));
			call.setProperty(Call.ENCODINGSTYLE_URI_PROPERTY, "");
			
			call.addParameter("username", string, String.class, ParameterMode.IN);
			
			call.setReturnClass(void.class);
			
			call.invoke(inParams);
			
		} catch (ServiceException e) {
			System.out.println("Error calling logout");
			e.printStackTrace();
		} catch (MalformedURLException e) {
			e.printStackTrace();
		} catch (RemoteException e) {
			e.printStackTrace();
		}
	}