/guava/guava/src/com/google/common/collect/Multisets.java
if ( elements.isEmpty( ) ) {   return false; }else {   return addAll( self, elements.iterator( ) ) ; }
[Delete]
checkNotNull(elements); if (elements instanceof Multiset) { return addAllImpl(self, cast(elements)); } else if (elements.isEmpty()) { return false; } else { <extra_id_0> } } private static <E extends @Nullable Object> boolean addAllImpl( Multiset<E> self, Multiset<? extends E> elements) { if (elements.isEmpty()) { return false;