/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java
return Iterators.<@Nullable E>getNext( headSet( e, true).subSet( ) , null) ;
return Iterators.<@Nullable E>getNext ( headSet ( e, true ) .descendingIterator ( ) , null ) ;
public E lower(E e) { return Iterators.<@Nullable E>getNext(headSet(e, false).descendingIterator(), null); } @Override @CheckForNull public E floor(E e) { <extra_id_0> } @Override @CheckForNull public E ceiling(E e) { return Iterables.<@Nullable E>getFirst(tailSet(e, true), null); }