Iterable<String> toRemove = ImmutableList.of();
    assertFalse(Multisets.removeOccurrences(multiset, toRemove));
    assertThat(multiset).containsExactly("a", "a", "b").inOrder();
  }

  public void testRemoveOccurrencesMultisetIterable() {
    Multiset<String> multiset = TreeMultiset.create(asList("a", "b", "a", "c"));
    List<String> toRemove = asList("a", "b", "b");
    assertTrue(Multisets.removeOccurrences(multiset, toRemove));