Spring Boot REST сервис

@Entity
@Table(name = "message")
public class Message {
 
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name = "ID")
    private long id;
    @Column(name = "MESSAGE")
    private String message;
    @Column(name = "AUTHOR")
    private String author;
    @Column(name = "CREATED")
    @Temporal(TemporalType.DATE)
    private Date created;
 
    public Message() {
    }
 
    public Message(Long id, String message, String author) {
        this.id = id;
        this.message = message;
        this.author = author;
        this.created = new Date();
    }
+ getters / setters

public interface MessageRepository extends JpaRepository<Message, Long>{
}

@RestController
public class MessageController {
 
    @Autowired
    private MessageRepository messageRepository;
 
    //Get all messages
    @RequestMapping(
            value = "/api/messages",
            method = RequestMethod.GET,
            produces = MediaType.APPLICATION_JSON_VALUE)
     public List<Message> getAllMessages() {
        return messageRepository.findAll();
     }
 
    //Get one message for id
    @RequestMapping(
            value = "/api/message/{id}",
            method = RequestMethod.GET,
            produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Message> getMessage(@PathVariable Long id) {
        return new ResponseEntity<>(messageRepository.findOne(id), HttpStatus.OK);
    }
 
    //Add one message
    @RequestMapping(
            value = "/api/message",
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_JSON_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<?> addMessage(@RequestBody Message newMessage) {
        //newMessage.setCreated(new Date());
        return new ResponseEntity<>(messageRepository.save(newMessage), HttpStatus.CREATED);
    }
 
    //Add array of messages
    @RequestMapping(
            value = "api/messages",
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_JSON_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<?> addMessages(@RequestBody List<Message> newMessages) {
 
        return new ResponseEntity<Object>(messageRepository.save(newMessages), HttpStatus.CREATED);
    }
}