Spring boot Data jpa LazyInitializationException for simple table without any Joins - method getById

I'm running my app in SpringBootTest. Using IN memory db.

I'm getting error in my spring app when i try to get record from db.

I'm using:

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

In this app/test I'm also doing save to db and it works fine.

Db table is build of two simple columns DUMMY_ID and REQUEST.

Error: Method threw 'org.hibernate.LazyInitializationException' exception. Cannot evaluate ....... $HibernateProxy$JjtlVUy6.toString()

Problematic method -> requestsRepository.getById("dummyId");

@Repository
@Transactional
public interface RequestsRepository extends JpaRepository<RequestsEntity, String> {
}

@Data
@Entity
@Component
@Table(name = "REQUESTS", schema = "", catalog = "")
public class RequestsEntity {
    @Id
    @Column(name = "DUMMY_ID")
    private String dummyId;
    @Column(name = "REQUEST")
    private String request;

    public RequestsEntity() {
    }

    public RequestsEntity(String dummyId, String request) {
        this.dummyId = dummyId;
        this.request = request;
    }
}

I don't know why getById is failing.