}

  public void testNewTreeSetFromIterableDerived() {
    Iterable<Derived> iterable = asList(new Derived("foo"), new Derived("bar"));
    TreeSet<Derived> set = Sets.newTreeSet(iterable);
    assertThat(set).containsExactly(new Derived("bar"), new Derived("foo")).inOrder();
  }

  public void testNewTreeSetFromIterableNonGeneric() {
    Iterable<LegacyComparable> iterable =

package com.google.common.collect;

import static com.google.common.collect.Comparators.isInOrder;
import static com.google.common.collect.ImmutableSortedSet.toImmutableSortedSet;
import static com.google.common.collect.Iterables.elementsEqual;
import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.collect.Sets.newHashSet;
import static com.google.common.truth.Truth.assertThat;

   *
   * <p><b>Warning:</b> {@code File} provides no support for symbolic links, and as such there is no
   * way to ensure that a symbolic link to a directory is not followed when traversing the tree. In
   * this case, iterables created by this traverser could contain files that are outside of the
   * given directory or even be infinite if there is a symbolic link loop.
   *

    return delegatesCast;
  }

  /** Can't use Iterables.toArray because it's not gwt compatible */
  @SuppressWarnings("unchecked")
  private static <T extends @Nullable Object> ListenableFuture<? extends T>[] gwtCompatibleToArray(
      Iterable<? extends ListenableFuture<? extends T>> futures) {
    Collection<ListenableFuture<? extends T>> collection;

   * entries in the same order as the original iterable.
   *
   * @throws NullPointerException if any key, value, or entry is null
   * @throws IllegalArgumentException if two entries have the same key
   * @since 19.0
   */
  public static <K, V> ImmutableMap<K, V> copyOf(
      Iterable<? extends Entry<? extends K, ? extends V>> entries) {

    implements Serializable {
  final Equivalence<E> elementEquivalence;

  PairwiseEquivalence(Equivalence<E> elementEquivalence) {
    this.elementEquivalence = Preconditions.checkNotNull(elementEquivalence);
  }

  @Override
  protected boolean doEquivalent(Iterable<T> iterableA, Iterable<T> iterableB) {
    Iterator<T> iteratorA = iterableA.iterator();

    implements Serializable {
  final Equivalence<E> elementEquivalence;

  PairwiseEquivalence(Equivalence<E> elementEquivalence) {
    this.elementEquivalence = Preconditions.checkNotNull(elementEquivalence);
  }

  @Override
  protected boolean doEquivalent(Iterable<T> iterableA, Iterable<T> iterableB) {
    Iterator<T> iteratorA = iterableA.iterator();

  // <Integer> needed to prevent warning :(
  private static final Iterable<Integer> iterable = Arrays.<Integer>asList();
  private static final Iterable<Integer> iterable1 = Arrays.asList(1);
  private static final Iterable<Integer> iterable12 = Arrays.asList(1, 2);
  private static final Iterable<Integer> iterable123 = Arrays.asList(1, 2, 3);
  private static final Iterable<@Nullable Integer> iterableNull = Arrays.asList((Integer) null);

    /**
     * Returns an {@link Iterable} that wraps a {@link ClassIterator} for use in a for-each statement.
     *
     * @param clazz the class (must not be {@literal null})
     * @return an {@link Iterable} wrapping a {@link ClassIterator}
     */
    public static Iterable<Class<?>> iterable(final Class<?> clazz) {
        return iterable(clazz, true);
    }

    /**

    }

    /**
     * Returns an {@link Iterable} that wraps a {@link LineIterator} for use in enhanced for-loops.
     *
     * @param reader
     *            The {@link BufferedReader} to read strings from. Must not be {@literal null}.
     * @return An {@link Iterable} that wraps a {@link LineIterator}.
     */
    public static Iterable<String> iterable(final BufferedReader reader) {