Hi,
I need to use an injection for a translator service in a mapstruct mapper to fetch some translations. Unfortunately I get a Null-Pointer Exception while reaching the service, because the injected field is null. I cannot fetch the translated text
I tried several configurations for the @Mapper-Annotation but I didn't get any changes. My Mapper:

@Mapper(componentModel = MappingConstants.ComponentModel.JAKARTA,
injectionStrategy = InjectionStrategy.FIELD)
public abstract class EmployeeMapper {

@Inject
protected TranslatorService service;

public abstract List<Employee> map(List<EmployeeEntity> entryEntity);

@Mapping(target = "title", source = "entity.titleID", qualifiedByName = "getTitle")
public abstract Employee map(EmployeeEntity entryEntity);

@Named("getTitle")
public String getTitle(Long titleID) {
    if (isNull(titleID)) {
        return null;
    }
    TranslatedText text = service.getTranaslatedTextForID(titleID);
    return text == null ? null : text.getText();
}

}
I get a Null-Pointer-Exception when because my service is null. How can I fix this problem? We use Hibernate with Jakarata but not Spring, and do not plan to introduce Spring.
best regards