private FixedIndexedRepo loadRepo(List<String> uris) throws IOException, URISyntaxException {
   FixedIndexedRepo repo = new FixedIndexedRepo();
   StringBuilder sb = new StringBuilder();
   for (Iterator<String> iter = uris.iterator(); iter.hasNext(); ) {
     sb.append(iter.next());
     if (iter.hasNext()) sb.append(',');
   }
   repo.setLocations(sb.toString());
   return repo;
 }