@Entity
@Table(name = "jobs")
public class Jobs implements Serializable {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

private String title;

@JsonManagedReference
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
@OneToMany(fetch = FetchType.LAZY, mappedBy = "job", cascade = CascadeType.ALL)
private Set<Tags> tags = new HashSet<>(0);

//...

@Entity
@Table(name = "tags")
public class Tags implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

private String name;

@JsonBackReference
@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_job")
private Jobs job;


//...

[
{
    "id": 1,
    "title": "Title1",
    "tags": [
        {
            "id": 3,
            "name": "Grahphic design"
        },
        {
            "id": 4,
            "name": "Sketch"
        }
     ],
}, ....]

[
        {
            "id": 3,
            "name": "Grahphic design"
        },
        {
            "id": 4,
            "name": "Sketch"
        },
        {
            "id": 1,
            "name": "Photoshop"
        },
        {
            "id": 2,
            "name": "Web design"
        }
    ]

tagsService.findAllTags().get(0).getJob()

Type definition error: [simple type, class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor]; nested exception is com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class org.hibernate.proxy.pojo.bytebuddy.ByteBuddyInterceptor and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain: test.sudo.sudoyers.entity.Jobs$HibernateProxy$SDqzJVBr[\"hibernateLazyInitializer\"])"