public synchronized List<String> listEntries(String namePattern) {
List<String> viewList = view.listEntries(namePattern);
List<String> archiveList = archive.listEntries(namePattern);
if (archiveList.isEmpty()) {
return viewList;
}
LinkedHashSet<String> entries = new LinkedHashSet<String>(viewList);
entries.addAll(archiveList);
return new ArrayList<String>(entries);
}
