/**
* Returns a newly-created {@code ImmutableSortedSet} based on the contents of the {@code
* Builder} and its comparator.
*/
@Override
public ImmutableSortedSet<E> build() {
@SuppressWarnings("unchecked") // we're careful to put only E's in here
E[] contentsArray = (E[]) contents;
ImmutableSortedSet<E> result = construct(comparator, size, contentsArray);
this.size = result.size(); // we eliminated duplicates in-place in contentsArray
return result;
}
