+ /**
+ * Return the (sorted) list of titles present in this list of
+ * {@link MetaData}s.
+ *
+ * @param metas
+ * the meta
+ *
+ * @return the sorted list
+ */
+ private List<String> titlesAsList(List<MetaData> metas) {
+ List<String> list = new ArrayList<String>();
+ for (MetaData meta : metas) {
+ list.add(meta.getTitle());
+ }
+
+ Collections.sort(list);
+ return list;
+ }
+