public static <T> T toObj(byte[] json, Class<T> cls) {
        try {
            return mapper.readValue(json, cls);
        } catch (Exception e) {
            throw new NacosDeserializationException(cls, e);
        }
    }
@Test
    void tesToObjForClassWithException() {
        assertThrows(NacosDeserializationException.class, () -> {
            JacksonUtils.toObj("aaa", JsonNode.class);
        });
    }