EDIT

import eu.etaxonomy.cdm.api.service.DeleteResult;

import eu.etaxonomy.cdm.api.service.config.SpecimenDeleteConfigurator;

import eu.etaxonomy.cdm.api.service.dto.RegistrationDTO;

import eu.etaxonomy.cdm.api.service.name.TypeDesignationSetManager.TypeDesignationWorkingSet;

import eu.etaxonomy.cdm.api.service.registration.IRegistrationWorkingSetService;

import eu.etaxonomy.cdm.api.service.registration.RegistrationWorkingSetService;

    @Override

    @Transactional

    public SpecimenTypeDesignationWorkingSetDTO<Registration> load(UUID registrationUuid, TypedEntityReference<? extends IdentifiableEntity<?>> baseEntityRef) {

        RegistrationDTO regDTO = registrationWorkingSetService.loadDtoByUuid(registrationUuid);

        // find the working set

        TypeDesignationWorkingSet typeDesignationWorkingSet = regDTO.getTypeDesignationWorkingSet(baseEntityRef);

    }

    protected SpecimenTypeDesignationWorkingSetDTO<Registration> specimenTypeDesignationWorkingSetDTO(RegistrationDTO regDTO, TypedEntityReference baseEntityReference) {

        Set<TypeDesignationBase> typeDesignations = regDTO.getTypeDesignationsInWorkingSet(baseEntityReference);

        List<SpecimenTypeDesignation> specimenTypeDesignations = new ArrayList<>(typeDesignations.size());

        typeDesignations.forEach(td -> specimenTypeDesignations.add((SpecimenTypeDesignation)td));

        VersionableEntity baseEntity = regDTO.getTypeDesignationWorkingSet(baseEntityReference).getBaseEntity();

        SpecimenTypeDesignationWorkingSetDTO<Registration> dto = new SpecimenTypeDesignationWorkingSetDTO<Registration>(regDTO.registration(),