/guava/guava/src/com/google/common/collect/Multimaps.java
return Collections.unmodifiableSortedSet( null) ;
return Collections.unmodifiableCollection ( collection ) ;
return Collections.unmodifiableSortedSet((SortedSet<E>) collection); } else if (collection instanceof Set) { return Collections.unmodifiableSet((Set<E>) collection); } else if (collection instanceof List) { return Collections.unmodifiableList((List<E>) collection); } else { <extra_id_0> } } @Override Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) { if (collection instanceof List) { return wrapList(key, (List<V>) collection, null);