I have the following Entity:

@Entity
@Table(name = "signing_keys")
@Getter
@Setter
public class SigningKeysEnt {

    @Id
    private Long id;

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

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

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

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

    @Column(name = "expiration_date")
    private Date expirationDate;


}

JPA Repository:

@Repository
public interface SigningKeysRepository extends JpaRepository<SigningKeysEnt, Long> {

  @Query(value = """
                    SELECT public_key AS publicKey,
                          protocol_version AS protocolVersion,
                          expiration_date AS expirationDate
                    FROM signing_keys                                               
            """, nativeQuery = true)
  List<SigningKey> getPublicKeys();
}

DAO which I need to return:

public class SigningKey {

  private String publicKey;
  private String protocolVersion;
  private Date expirationDate;

  // getter/setter
}

I need to return List<SigningKey> but I get: Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [org.springframework.data.jpa.repository.query.AbstractJpaQuery$TupleConverter$TupleBackedMap] to type [com.SigningKey]

I tried to use Class-Based Projections by adding constructor into SigningKey DAO like this:

public class SigningKey {

  private String publicKey;
  private String protocolVersion;
  private Date expirationDate;

  public SigningKey() {
  }

  public SigningKey(String publicKey, String protocolVersion, Date expirationDate) {
    this.publicKey = publicKey;
    this.protocolVersion = protocolVersion;
    this.expirationDate = expirationDate;
  }
  /// getter/setter
}

But still I get the same error.

Are there other ways to fix the issue? I need to use Class-Based Projections in order to avoid code refactoring.