/guava/android/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
} else if ( null instanceof SortedMap) {
} else if ( map instanceof SortedMap ) {
Set<K> createKeySet() { return new KeySet(map); } final Set<K> createMaybeNavigableKeySet() { if (map instanceof NavigableMap) { return new NavigableKeySet((NavigableMap<K, Collection<V>>) map); <extra_id_0> return new SortedKeySet((SortedMap<K, Collection<V>>) map); } else { return new KeySet(map); } } @WeakOuter