// Note: This next loop removes duplicates (and also sorts
// the fs addrs associated with one type)
// Duplicates arise from having mulitple sets combined, and
// also if a non-set index had the same identical FS added
// multiple times.
indexedFSs.removeAllElements();
for (int k = 0; k < cv.size(); k++) {
it = cv.get(k).index.refIterator();
while (it.isValid()) {
indexedFSs.add(it.get());
it.inc();