guava/src/com/google/common/collect/ImmutableMultiset.java
@SuppressWarnings("unchecked") //
  public static <E> ImmutableMultiset<E> of(E e1, E e2, E e3, E e4, E e5, E e6, E... others) {
    return new Builder<E>().add(e1).add(e2).add(e3).add(e4).add(e5).add(e6).add(others).build();
  }
@SuppressWarnings("unchecked") //
  public static <E> ImmutableMultiset<E> of(E e1, E e2, E e3, E e4, E e5, E e6, E... others) {
    return new Builder<E>().add(e1).add(e2).add(e3).add(e4).add(e5).add(e6).add(others).build();
  }
Returns an immutable multiset containing the given elements, in the "grouped iteration order"
described in the class documentation.

@throws NullPointerException if any element is null
@since 6.0 (source-compatible since 2.0)