@Entity
@Table(name = "auth_accaunt")
public class Accaunt implements Serializable {

    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id")
    private Integer id;

    @Column(name = "login")
    private String login;

    @Column(name = "password")
    private String password;

    @ManyToMany(fetch = FetchType.LAZY)
    @JoinTable(
        name = "auth_accaunt_role",
        joinColumns = {
            @JoinColumn(name = "id_accaunt")
        },
        inverseJoinColumns = {
            @JoinColumn(name = "id_role")
        }
    )
    private Set<Role> roles = new LinkedHashSet<>();

    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name="id_user")
    private User user;

    public Accaunt() {}

    public Integer getId() {
        return id;
    }
    public String getLogin() {
        return login;
    }
    public String getPassword() {
        return password;
    }
    public Set<Role> getRoles() {
        return roles;
    }
    public User getUser() {
        return user;
    }

    public void setId(Integer id) {
        this.id = id;
    }
    public void setLogin(String login) {
        this.login = login;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    public void setRoles(Set<Role> roles) {
        this.roles = roles;
    }
    public void setUser(User user) {
        this.user = user;
    }

}

@Entity
@Table(name = "auth_role")
public class Role implements Serializable{

    @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id")
    private Integer id;

    @Column(name = "name")
    private String name;

    public Role() {}

    public Integer getId() {
        return id;
    }
    public String getName() {
        return name;
    }

    public void setId(Integer id) {
        this.id = id;
    }
    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return name;
    }

}