while (i.hasNext()) {
        foo(i.next());
      }
    }
  }

  private static void foo(Object unused) {}

  public void testFilteredKeysSetMultimapReplaceValues() {
    SetMultimap<String, Integer> multimap = LinkedHashMultimap.create();
    multimap.put("foo", 1);
    multimap.put("bar", 2);
    multimap.put("baz", 3);
    multimap.put("bar", 4);