itExpected = map2.values().iterator();
while (it.hasNext())
assertEquals(itExpected.next(), it.next().getValue());
assertFalse(itExpected.hasNext());
it = tree.prefixLookup("3".getBytes(), false, true);
itExpected = map3.subMap("3", "4").values().iterator();
while (it.hasNext())
assertEquals(itExpected.next(), it.next().getValue());
assertFalse(itExpected.hasNext());
}