Not using kotlin primary constructor

i am developing project using kotlin and have the following classes
DTO class

data class TestDTO (
    val name: String,
    val type: String
)

Model class

@Entity
data class Test (
    @Column(name = "name")
    val name: String? = null,

    @Column(name = "type")
    val type: String? = null,

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(columnDefinition = "BIGINT")
    val id: BigInteger? = null
)

Mapper Class

@Mapper(componentModel = "spring", injectionStrategy = InjectionStrategy.CONSTRUCTOR)
interface TestMapper {
    fun convertToTest(testDTO: TestDTO): Test
}

I expected the generated mapper will use constructor to create the Test class (the model), but the result is like below

@Component
public class TestMapperImpl implements TestMapper {

    @Override
    public Test convertToTest(TestDTO testDTO) {
        if ( testDTO == null ) {
            return null;
        }

        Test test = new Test();

        return test;
    }
}

why is it using the empty constructor of Test, can we use the Test(name, type) constructor?