assertThat(multiset).containsExactly("a", "c").inOrder();
  }

  @SuppressWarnings({"deprecation", "InlineMeInliner"}) // test of a deprecated method
  public void testUnmodifiableMultisetShortCircuit() {
    Multiset<String> mod = HashMultiset.create();
    Multiset<String> unmod = unmodifiableMultiset(mod);
    assertNotSame(mod, unmod);
    assertSame(unmod, unmodifiableMultiset(unmod));