Iterator iter = set.iterator();
iter.next();
iter.remove();
assertFalse(tm.containsKey(testint0.toString()));
collection.add(new Integer(200).toString());
set.retainAll(collection);
assertEquals(1, tm.size());
set.removeAll(collection);
assertEquals(0, tm.size());
tm.put(testint10000.toString(), testint10000);
assertEquals(1, tm.size());