core.execute(req,rsp);
// Retrieve the Document instances (not just the ids) to warm
// the OS disk cache, and any Solr document cache. Only the top
// level values in the NamedList are checked for DocLists.
NamedList values = rsp.getValues();
for (int i=0; i<values.size(); i++) {
Object o = values.getVal(i);
if (o instanceof DocList) {
DocList docs = (DocList)o;
for (DocIterator iter = docs.iterator(); iter.hasNext();) {
newSearcher.doc(iter.nextDoc());
}