map = new TIntLongHashMap();
for ( int i = 0; i < keys.length; i++ ) {
vals[i] = keys[i] * 2;
map.put( keys[i], vals[i] );
}
values = map.valueCollection();
// Empty list
TLongCollection collection = new TLongArrayList();
assertFalse( "values: " + values + ", collection: " + collection,
values.removeAll( collection ) );