if (entrySet instanceof NavigableSet) {
ascendingSubMapEntrySet = (NavigableSet) entrySet;
iterator = ascendingSubMapEntrySet.iterator();
while (iterator.hasNext()) {
entry = (Entry) iterator.next();
lowerEntry = (Entry) ascendingSubMapEntrySet.higher(entry);
value = (Integer) entry.getValue();
if (value < 109) {
assertEquals(value + 1, lowerEntry.getValue());
} else {
assertNull(lowerEntry);