public static InitialNotificationHolder getInstance() {
        if (sInstance == null) {
            sInstance = new InitialNotificationHolder();
        }
        return sInstance;
    }
@Test
    public void isALazySingleton() throws Exception {
        final InitialNotificationHolder instance = InitialNotificationHolder.getInstance();
        assertNotNull(instance);
        assertEquals(instance, InitialNotificationHolder.getInstance());
    }