public static <E> ImmutableSortedSet<E> copyOf(Iterator<? extends E> elements) {
    return copyOfInternal((Ordering<E>) Ordering.natural(), (Iterator<E>) elements);
  }

  public static <E extends Comparable<? super E>> ImmutableSortedSet<E> copyOf(E[] elements) {
    return ofInternal(Ordering.natural(), elements);
  }

  public static <E> ImmutableSortedSet<E> copyOf(

   * {@link Collection}, this method behaves exactly as {@link #copyOf(Collection)}; otherwise, it
   * behaves exactly as {@code copyOf(elements.iterator()}.
   *
   * @throws NullPointerException if {@code elements} contains a null element
   */
  public static <E> ImmutableList<E> copyOf(Iterable<? extends E> elements) {
    checkNotNull(elements); // TODO(kevinb): is this here only for GWT?

   * ObjectArrays, which is the main caller of this method.)
   */
  static <T extends @Nullable Object> T[] newArray(T[] reference, int length) {
    T[] empty = reference.length == 0 ? reference : Arrays.copyOf(reference, 0);
    return Arrays.copyOf(empty, length);
  }

  /** Equivalent to Arrays.copyOfRange(source, from, to, arrayOfType.getClass()). */
  /*

        builder.put(entry.getKey(), entry.getValue());
      }
      return ImmutableBiMap.copyOf(builder);
    }
  }

  public static class ImmutableBiMapCopyOfEntriesGenerator extends TestStringBiMapGenerator {
    @Override
    protected BiMap<String, String> create(Entry<String, String>[] entries) {
      return ImmutableBiMap.copyOf(asList(entries));
    }
  }

  /**

  }

  private static void testReverse(byte[] input, byte[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Bytes.reverse(input);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(byte[] input, int fromIndex, int toIndex, byte[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Bytes.reverse(input, fromIndex, toIndex);

    input.put("foo", 3);
    input.put("foo", 1);
    ImmutableSetMultimap<Object, Object> copy = ImmutableSetMultimap.copyOf(input);
    assertEquals(3, copy.size());
  }

  public void testCopyOfEmpty() {
    HashMultimap<String, Integer> input = HashMultimap.create();
    Multimap<String, Integer> multimap = ImmutableSetMultimap.copyOf(input);
    assertEquals(multimap, input);
    assertEquals(input, multimap);
  }

    ImmutableList.Builder<List<E>> axesBuilder = new ImmutableList.Builder<>(lists.size());
    for (List<? extends E> list : lists) {
      List<E> copy = ImmutableList.copyOf(list);
      if (copy.isEmpty()) {
        return ImmutableList.of();
      }
      axesBuilder.add(copy);
    }
    return new CartesianList<>(axesBuilder.build());
  }

  CartesianList(ImmutableList<List<E>> axes) {
    this.axes = axes;

                this.profiles = profiles != null ? List.copyOf(profiles) : List.of();
                this.activeProfileIds = activeProfileIds != null ? List.copyOf(activeProfileIds) : List.of();
                this.inactiveProfileIds = inactiveProfileIds != null ? List.copyOf(inactiveProfileIds) : List.of();
                this.systemProperties =
                        systemProperties != null ? Map.copyOf(systemProperties) : session.getSystemProperties();

      @Override
      public <E extends Comparable<E>> Set<E> create(Collection<E> contents) {
        return ImmutableSet.copyOf(contents);
      }
    },
    ImmutableSortedSetImpl {
      @Override
      public <E extends Comparable<E>> Set<E> create(Collection<E> contents) {
        return ImmutableSortedSet.copyOf(contents);
      }
    },
    ContiguousSetImpl {
      @Override

    rangeMap.put(Range.open(3, 7), 1);
    rangeMap.put(Range.closed(9, 10), 2);
    rangeMap.put(Range.closed(12, 16), 3);

    RangeMap<Integer, Integer> copy = TreeRangeMap.copyOf(rangeMap);

    assertEquals(rangeMap.asMapOfRanges(), copy.asMapOfRanges());
  }

  public void testCopyOfImmutableRangeMap() {
    ImmutableRangeMap<Integer, Integer> rangeMap =
        ImmutableRangeMap.<Integer, Integer>builder()