public void loadConfiguration() {
        try {
            if (null != loggingAdapter) {
                loggingAdapter.loadConfiguration(loggingProperties);
            }
        } catch (Throwable t) {
            LOGGER.warn("Load {} Configuration of Nacos fail, message: {}", LOGGER.getClass().getName(),
                    t.getMessage());
        }
    }
@Test
    void testLoadConfiguration() throws NoSuchFieldException, IllegalAccessException {
        instance = NacosLogging.getInstance();
        Field nacosLogging = NacosLogging.class.getDeclaredField("loggingAdapter");
        nacosLogging.setAccessible(true);
        nacosLogging.set(instance, loggingAdapter);
        instance.loadConfiguration();
        Mockito.verify(loggingAdapter, Mockito.times(1)).loadConfiguration(loggingProperties);
    }