int[] ints = {1138, 42, 86, 99, 101};
TIntSet raw_set = new TIntHashSet();
raw_set.addAll( ints );
Set<Integer> set = TDecorators.wrap( raw_set );
TIntSet raw_other = new TIntHashSet();
raw_other.addAll( ints );
Set<Integer> other = TDecorators.wrap( raw_other );
assertTrue( "hashcodes incorrectly not equal: " + set + ", " + other,
set.hashCode() == other.hashCode() );