EDIT

    @RequestMapping(

            value = {"{treeUuid}/siblingsOf/{taxonUuid}"},

            method = RequestMethod.GET)

    public List<TaxonNode> getSiblingsOfTaxon(

            @PathVariable("treeUuid") UUID treeUuid,

            @PathVariable("taxonUuid") UUID taxonUuid,

            HttpServletRequest request,

            HttpServletResponse response) throws IOException {

        logger.info("getSiblingsOfTaxon() " + request.getRequestURI());

        //FIXME return pager

        List<TaxonNode> childs = service.listSiblingsOfTaxon(taxonUuid, treeUuid, null, null, NODE_INIT_STRATEGY);

        return childs;

    }