public static String updateJ(String json, SolrParams args) throws Exception {
SolrCore core = h.getCore();
DirectSolrConnection connection = new DirectSolrConnection(core);
SolrRequestHandler handler = core.getRequestHandler("/udate/json");
if (handler == null) {
handler = new JsonUpdateRequestHandler();
handler.init(null);
}
return connection.request(handler, args, json);
}