assertEquals(0, copy.indexOf(list.get(0)));
    assertEquals(0, head.indexOf(list.get(0)));
    assertEquals(0, tail.indexOf(list.get(1)));
    // The following assumes all elements are distinct.
    assertEquals(size - 1, copy.indexOf(list.get(size - 1)));
    assertEquals(size - 2, head.indexOf(list.get(size - 2)));
    assertEquals(size - 2, tail.indexOf(list.get(size - 1)));

    assertEquals(0, copy.indexOf(list.get(0)));
    assertEquals(0, head.indexOf(list.get(0)));
    assertEquals(0, tail.indexOf(list.get(1)));
    // The following assumes all elements are distinct.
    assertEquals(size - 1, copy.indexOf(list.get(size - 1)));
    assertEquals(size - 2, head.indexOf(list.get(size - 2)));
    assertEquals(size - 2, tail.indexOf(list.get(size - 1)));

            return null;
        }

        String expression = stripTokens(expr);
        if (expression.equals(expr)) {
            int index = expr.indexOf("${");
            if (index >= 0) {
                int lastIndex = expr.indexOf('}', index);
                if (lastIndex >= 0) {
                    String retVal = expr.substring(0, index);

    return forward.floor(element);
  }

  @Override
  @CheckForNull
  public E higher(E element) {
    return forward.lower(element);
  }

  @Override
  int indexOf(@CheckForNull Object target) {
    int index = forward.indexOf(target);
    if (index == -1) {
      return index;
    } else {
      return size() - 1 - index;
    }
  }

  @Override
  boolean isPartialView() {

        }
        return compareSegments(taskName1, taskName2);
    }

    private int compareSegments(String taskName1, String taskName2) {
        int colon1 = taskName1.indexOf(':');
        int colon2 = taskName2.indexOf(':');
        if (colon1 > 0 && colon2 > 0) {
            int diff = taskName1.substring(0, colon1).compareTo(taskName2.substring(0, colon2));
            if (diff != 0) {
                return diff;

     * @param array
     *            配列
     * @param obj
     *            検索するオブジェクト
     * @return 配列中からオジェクトが最初に見つかったインデックス
     */
    public static <T> int indexOf(final T[] array, final T obj) {
        return indexOf(array, obj, 0);
    }

    /**
     * 配列中からオジェクトが最初に見つかったインデックスを返します。
     *
     * @param <T>
     *            配列の要素の型
     * @param array
     *            配列

    return forward.floor(element);
  }

  @Override
  @CheckForNull
  public E higher(E element) {
    return forward.lower(element);
  }

  @Override
  int indexOf(@CheckForNull Object target) {
    int index = forward.indexOf(target);
    if (index == -1) {
      return index;
    } else {
      return size() - 1 - index;
    }
  }

  @Override
  boolean isPartialView() {

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

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

@ElementTypesAreNonnullByDefault
abstract class ForwardingImmutableList<E> extends ImmutableList<E> {

  ForwardingImmutableList() {}

  abstract List<E> delegateList();

  public int indexOf(@Nullable Object object) {
    return delegateList().indexOf(object);
  }

  public int lastIndexOf(@Nullable Object object) {
    return delegateList().lastIndexOf(object);
  }

  public E get(int index) {

        def rootBuildFinishedPosition = outputLines.indexOf("# gradle.buildFinished failure=null [:]")
        rootBuildFinishedPosition >= 0

        def buildBFinishedPosition = outputLines.indexOf("# gradle.buildFinished failure=null [:buildB]")
        buildBFinishedPosition >= 0
        def buildCFinishedPosition = outputLines.indexOf("# gradle.buildFinished failure=null [:buildC]")
        buildCFinishedPosition >= 0