static public List<String> getEntryNames(Iterator<FSEntry> it) {
static public List<String> getEntryNames(Iterator<? extends FSEntry> it) {
    static public List<String> getEntryNames(Iterator<FSEntry> it) {        List<String> names = new ArrayList<String>();        while (it.hasNext()) {            FSEntry entry = it.next();            names.add((entry == null) ? null : entry.getName());        }        return names;    }