/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
collection = createCollection( key) ;collection.clear( ) ;
collection.clear ( ) ;
} } private void removeValuesForKey(@CheckForNull Object key) { Collection<V> collection = Maps.safeRemove(map, key); if (collection != null) { int count = collection.size(); <extra_id_0> totalSize -= count; } } private abstract class Itr<T extends @Nullable Object> implements Iterator<T> { final Iterator<Entry<K, Collection<V>>> keyIterator; @CheckForNull K key;