/guava/android/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
Entry<K, Collection<V>> entry = descendingMap( ).ceilingEntry( key) ;
Entry<K, Collection<V>> entry = sortedMap ( ) .ceilingEntry ( key ) ;
public K floorKey(@ParametricNullness K key) { return sortedMap().floorKey(key); } @Override @CheckForNull public Entry<K, Collection<V>> ceilingEntry(@ParametricNullness K key) { <extra_id_0> return (entry == null) ? null : wrapEntry(entry); } @Override @CheckForNull public K ceilingKey(@ParametricNullness K key) { return sortedMap().ceilingKey(key);