我的log4jdbc为什么出现[unread]问题？

Question

我的类以及测试方法如下

1、实体类

@Data  
@NoArgsConstructor  
@AllArgsConstructor  
@Entity  
@Table(name = "sys_user")  
public class User implements Serializable {  
  
   @Id  
   @GeneratedValue(strategy = GenerationType.IDENTITY)  
   private Long id;  
  
   @Column(name="user_name")  
   private String userName;  
  
   @Column  
   private Integer age;  
}

2、测试类

@SpringBootTest  
@Transactional  
class JpaSelectDemoApplicationTests {  
  
  @Autowired  
  private UserDao userDao;  
  
  @BeforeEach  
  public void init() {  
        userDao.save(new User(null, "张三", 25));  
        userDao.save(new User(null, "李四", 30));  
        userDao.save(new User(null, "李三", 28));  
        userDao.save(new User(null, "王六", 32));  
        userDao.save(new User(null, "赵四", 22));  
        userDao.flush();  
  }  
  
  @Test  
  public void findAllByUserNameAndAge() {  
        User user = new User(null, "张三", null);  
        Example<User> example = Example.of(user);  
        List<User> list = userDao.findAll();  
        System.out.println(list);  
  }  
  
}

执行之后，当然插入数据时很成功的，但，log4jdbc插件却给我输出这样的数据，都是【unread】，这是log4jdbc的一个bug还是说我弄错了什么，请各位大神指教一下小弟我