Spring boot - com.fasterxml.jackson.databind.exc.MismatchedInputException: невозможно создать экземпляр

У меня возникли проблемы с отправкой объекта JSON из моего пользовательского интерфейса в контроллер Spring Boot.

Вот мой контроллер, я закомментировал код контроллера и просто возвращаю новый объект. Кажется, что JSON неправильно анализируется для объекта домена:

PersonnelController:

@Controller
@RequestMapping(value = "/Personnel")
public class PersonnelController {

    @RequestMapping(value = "update", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
    @ResponseBody
    public Personnel updateJson(@RequestBody Personnel personnel) {

        System.out.println("update personnel json : " + personnel.toString());
        return new Personnel();
    }
}

Мой контроллер не является контроллером REST, и я использую согласование содержимого, чтобы иметь возможность использовать модель Spring и REST API вместе.

Это мои занятия:

Пользователь:

@Entity
@Inheritance(strategy = InheritanceType.JOINED)
public class User extends AbstractDomainClass {

    @Column(unique = true)
    private String username;

    @Transient
    private String password;

    private String encryptedPassword;

    private boolean enabled = true;

    @ManyToMany(fetch = FetchType.EAGER)
    @JoinTable
    @JsonBackReference(value = "roles")
    private List<Role> roles = new ArrayList<>();
}

Персонал:

@Entity
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
@JsonIdentityInfo(generator=ObjectIdGenerators.PropertyGenerator.class, property = "id")
public class Personnel extends User {

    private String firstName;
    private String lastName;
    private long nationalId;
    private long perssonnelId;

    @DateTimeFormat(pattern = "yyyy-MM-dd")
    private LocalDate birthDate;

    @ManyToOne(fetch = FetchType.LAZY)
    private Company company;
}

Компания:

@Entity
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
public class Company extends AbstractDomainClass {

    @Column(unique = true)
    private String name;
    private String description;
    private String address;
    private String adminName;

    @OneToMany(fetch = FetchType.LAZY , cascade = CascadeType.PERSIST , orphanRemoval = true)
    @JoinTable
    @JsonBackReference
    private List<Personnel> personnels = new ArrayList<>();

    @OneToOne(fetch = FetchType.EAGER , cascade = CascadeType.ALL)
    private User admin;

}

Роль:

@Entity 
@JsonIdentityInfo(generator=ObjectIdGenerators.PropertyGenerator.class, property = "id")
public class Role extends AbstractDomainClass {

    @Column(unique = true)
    private String roleName;

    @ManyToMany(fetch = FetchType.EAGER , mappedBy = "roles")
    private List<User> users = new ArrayList<>();

    @ManyToMany
    @Fetch(FetchMode.SELECT)
    private List<Permission> permissions = new ArrayList<>();
}

(Я пропустил геттеры и сеттеры.)

Это JSON, который я отправляю контроллеру:

и это ошибка Spring Boot:

WARN 10289 --- [nio-8080-exec-1] .w.s.m.s.DefaultHandlerExceptionResolver : Failed to read HTTP message: org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot construct instance of `navid.usermanagementsys.domain.Company` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('{"id":26,"version":0,"dateCreated":"2018-08-08T16:02:15.000+0000","name":"company1","description":"Description Description Description Description","address":"IRAN","adminName":"Company admin","admin":{"id":25,"version":0,"dateCreated":"2018-08-08T16:02:15.000+0000","username":"company","password":null,"encryptedPassword":"$2a$10$kw5T5CCep.WwC5kj7Szgyu6akB7Zbx.jgqIz5dQtAx6Oz4F8ywIWq","enabled":true,"dateLastUpdated":"2018-08-08T16:02:15.000+0000"},"dateLastUpdated":"2018-08-08T16:02:15.000+0000"}');
nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `navid.usermanagementsys.domain.Company` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value** ('{"id":26,"version":0,"dateCreated":"2018-08-08T16:02:15.000+0000","name":"company1","description":"Description Description Description Description","address":"IRAN","adminName":"Company admin","admin":{"id":25,"version":0,"dateCreated":"2018-08-08T16:02:15.000+0000","username":"company","password":null,"encryptedPassword":"$2a$10$kw5T5CCep.WwC5kj7Szgyu6akB7Zbx.jgqIz5dQtAx6Oz4F8ywIWq","enabled":true,"dateLastUpdated":"2018-08-08T16:02:15.000+0000"},"dateLastUpdated":"2018-08-08T16:02:15.000+0000"}')
at [Source: (PushbackInputStream); line: 1, column: 152] (through reference chain: navid.usermanagementsys.domain.Personnel["company"])

Я потратил часы на поиск решения, и я попытался создать конструктор без аргументов, но ничто не решило мою проблему.