params.add(SpellCheckComponent.SPELLCHECK_COLLATE_EXTENDED_RESULTS, "true");
handler = core.getRequestHandler("spellCheckCompRH");
rsp = new SolrQueryResponse();
rsp.add("responseHeader", new SimpleOrderedMap());
req = new LocalSolrQueryRequest(core, params);
handler.handleRequest(req, rsp);
req.close();
values = rsp.getValues();
spellCheck = (NamedList) values.get("spellcheck");
suggestions = (NamedList) spellCheck.get("suggestions");
List<NamedList> expandedCollationList = suggestions.getAll("collation");