/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java
Collections.addAll( elements) ;
Collections.addAll ( set, elements ) ;
set.addAll(collection); return set; } @SafeVarargs public static <E extends @Nullable Object> CompactLinkedHashSet<E> create(E... elements) { CompactLinkedHashSet<E> set = createWithExpectedSize(elements.length); <extra_id_0> return set; } public static <E extends @Nullable Object> CompactLinkedHashSet<E> createWithExpectedSize( int expectedSize) { return new CompactLinkedHashSet<>(expectedSize); }