*     such index exists.
   */
  public static int indexOf(int[] array, int target) {
    return indexOf(array, target, 0, array.length);
  }

  // TODO(kevinb): consider making this public
  private static int indexOf(int[] array, int target, int start, int end) {
    for (int i = start; i < end; i++) {
      if (array[i] == target) {
        return i;
      }
    }

   */
  @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.
  public final Optional<@NonNull E> last() {
    // Iterables#getLast was inlined here so we don't have to throw/catch a NSEE

    // TODO(kevinb): Support a concurrently modified collection?
    Iterable<E> iterable = getDelegate();
    if (iterable instanceof List) {
      List<E> list = (List<E>) iterable;
      if (list.isEmpty()) {

    @LazyInit @Nullable TimeoutFuture<V> timeoutFutureRef;

    Fire(TimeoutFuture<V> timeoutFuture) {
      this.timeoutFutureRef = timeoutFuture;
    }

    @Override
    // TODO: b/227335009 - Maybe change interruption behavior, but it requires thought.
    @SuppressWarnings("Interruption")
    public void run() {

   * process it; all should produce the same answer, the only difference should be the number of
   * process()/processRemaining() invocations, due to alignment.
   */
  @AndroidIncompatible // slow. TODO(cpovirk): Maybe just reduce iterations under Android.
  public void testExhaustive() throws Exception {
    Random random = new Random(0); // will iteratively make more debuggable, each time it breaks

                final AccessResultImpl<Long> ar = entry.getValue().get(url);
                if (ar != null) {
                    acList.add(ar);
                }
            }
        }
        // TODO order
        return acList;
    }

    /**
     * Adds an include URL pattern for the specified session.
     * @param sessionId the session ID
     * @param url the URL pattern to include
     */

        // TODO always returns empty list
        return split(getIndexAdminArrayFields(), ",").get(stream -> stream.filter(StringUtil::isNotBlank)
                .map(String::trim)
                .filter(s -> isNonEmptyValue(source.get(s)))
                .filter(s -> false) // TODO
                .collect(Collectors.toList()));
    }

    return testers;
  }

  @Override
  TestSuite createElementSetTestSuite(
      FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>>
          parentBuilder) {
    // TODO(lowasser): make a SortedElementSetGenerator
    return SetTestSuiteBuilder.using(
            new ElementSetGenerator<E>(parentBuilder.getSubjectGenerator()))
        .named(getName() + ".elementSet")

    assertNotSame(shadowClass, WillBeUnloadedException.class);
    getChecked(immediateFuture("foo"), shadowClass);
    return new WeakReference<>(shadowLoader);
  }

  /*
   * TODO(cpovirk): It would be great to run all these tests (including class unloading) in an
   * environment that forces Futures.getChecked to its fallback WeakSetValidator. One awful way of

    CharSource concatenated = CharSource.concat(cycle);

    String expected = "abcdabcd";

    // read the first 8 chars manually, since there's no equivalent to ByteSource.slice
    // TODO(cgdecker): Add CharSource.slice?
    StringBuilder builder = new StringBuilder();
    Reader reader = concatenated.openStream(); // no need to worry about closing
    for (int i = 0; i < 8; i++) {

  @AndroidIncompatible // No getJavaLangAccess in Android (at least not in the version we use).
  @J2ktIncompatible
  @GwtIncompatible // lazyStackTraceIsLazy()
  public void testLazyStackTraceWorksInProd() {
    // TODO(b/64442212): Remove this guard once lazyStackTrace() works in Java 9+.
    Integer javaVersion = Ints.tryParse(JAVA_SPECIFICATION_VERSION.value());
    if (javaVersion != null && javaVersion >= 9) {
      return;
    }