EDIT

    /**

     * {@inheritDoc}

     */

    @Override

    public Map<UUID, UUID> getTaxonNodeUuidByTaxonUuid(UUID classificationUuid, List<UUID> taxonUuids) {

        String hql = " SELECT t.uuid, tn.uuid "

                + " FROM Taxon t JOIN t.taxonNodes tn "

                + " WHERE (1=1)"

                + "     AND tn.classification.uuid = :classificationUuid "

                + "     AND t.uuid IN (:taxonUuids) "

                ;

        Query query =  getSession().createQuery(hql);

        query.setParameter("classificationUuid", classificationUuid);

        query.setParameterList("taxonUuids", taxonUuids);

        Map<UUID, UUID> result = new HashMap<>();

        @SuppressWarnings("unchecked")

        List<Object[]> list = query.list();

        for (Object[] o : list){

            result.put((UUID)o[0], (UUID)o[1]);

        }

        return result;

    }