Map<Color, Collection<Integer>> map = Maps.newEnumMap(Color.class);
    Multimap<Color, Integer> multimap = Multimaps.newMultimap(map, factory);
    assertTrue(multimap.get(Color.BLUE) instanceof NavigableSet);
  }

  public void testNewMultimapValueCollectionMatchesList() {
    Supplier<LinkedList<Integer>> factory = new ListSupplier();
    Map<Color, Collection<Integer>> map = Maps.newEnumMap(Color.class);

   * associated Enum values.
   */
  @VisibleForTesting
  static <E extends Enum<E>> Map<E, LockGraphNode> createNodes(Class<E> clazz) {
    EnumMap<E, LockGraphNode> map = Maps.newEnumMap(clazz);
    E[] keys = clazz.getEnumConstants();
    int numKeys = keys.length;
    ArrayList<LockGraphNode> nodes = Lists.newArrayListWithCapacity(numKeys);
    // Create a LockGraphNode for each enum value.