descendingSet = ((NavigableSet) entrySet).descendingSet();
assertNull(((NavigableSet) entrySet).comparator());
comparator = descendingSet.comparator();
assertNotNull(comparator);
entryArray = (Entry[]) descendingSet
.toArray(new Entry[descendingSet.size()]);
for (int i = 1; i < entryArray.length; i++) {
value1 = (Integer) entryArray[i - 1].getValue();
value2 = (Integer) entryArray[i].getValue();
assertTrue(value1 > value2);