EDIT

    @Override

    public Pager<UuidAndTitleCache<SpecimenOrObservationBase>> findByTitleUuidAndTitleCache(

            FindOccurrencesConfigurator config){

        List<UuidAndTitleCache<SpecimenOrObservationBase>> occurrences = new ArrayList<>();

        Taxon taxon = null;

        if(config.getAssociatedTaxonUuid()!=null){

            TaxonBase taxonBase = taxonService.load(config.getAssociatedTaxonUuid());

            if(taxonBase.isInstanceOf(Taxon.class)){

                taxon = HibernateProxyHelper.deproxy(taxonBase, Taxon.class);

            }

        }

        TaxonName taxonName = null;

        if(config.getAssociatedTaxonNameUuid()!=null){

            taxonName = nameService.load(config.getAssociatedTaxonNameUuid());

        }

        occurrences.addAll(dao.findOccurrencesUuidAndTitleCache(config.getClazz(),

                config.getTitleSearchString(), config.getSignificantIdentifier(),

                config.getSpecimenType(), taxon, taxonName, config.getMatchMode(), null, null,

                config.getOrderHints()));

        return new DefaultPagerImpl<UuidAndTitleCache<SpecimenOrObservationBase>>(config.getPageNumber(), occurrences.size(), config.getPageSize(), occurrences);

    }