Hashtable<Integer, Integer> myHashtable = new Hashtable<>();
for (int i = 0; i < 100; i++)
myHashtable.put(new Integer(i), new Integer(i));
Collection<Integer> values = myHashtable.values();
new Support_UnmodifiableCollectionTest(values).runTest();
values.remove(new Integer(0));
assertTrue("Removing from the values collection should remove from the original map",
!myHashtable.containsValue(new Integer(0)));
}