return StringUtil.EMPTY; // empty
        }

        String url = u;
        final String originalUrl = url;

        int idx = url.indexOf("://");
        if (idx >= 0) {
            url = url.substring(idx + 3);
        }

        idx = url.indexOf('/');
        if (idx >= 0) {
            url = url.substring(0, idx);
        }

        if (url.equals(originalUrl)) {

      int answer,
      KeyPresentBehavior presentBehavior,
      KeyAbsentBehavior absentBehavior) {
    switch (presentBehavior) {
      case FIRST_PRESENT:
        if (list.contains(key)) {
          assertEquals(list.indexOf(key), answer);
          return;
        }
        break;
      case LAST_PRESENT:
        if (list.contains(key)) {
          assertEquals(list.lastIndexOf(key), answer);
          return;
        }

  }

  /**
   * Returns the index of the first appearance of the value {@code target} in {@code array}.
   *
   * @param array an array of {@code long} values, possibly empty
   * @param target a primitive {@code long} value
   * @return the least index {@code i} for which {@code array[i] == target}, or {@code -1} if no
   *     such index exists.
   */
  public static int indexOf(long[] array, long target) {

            result = getProjectsInRequestScope(request, activeProjects);

            List<MavenProject> sortedProjects = graph.getSortedProjects();
            result.sort(comparing(sortedProjects::indexOf));

            result = includeAlsoMakeTransitively(result, request, graph);
        }

        return result;
    }

    private List<MavenProject> trimSelectedProjects(

  @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 forward.isPartialView();
  }

  }

  public void testCartesianProduct_indexOf() {
    List<List<Integer>> actual = Lists.cartesianProduct(list(1, 2), list(3, 4));
    assertEquals(0, actual.indexOf(list(1, 3)));
    assertEquals(1, actual.indexOf(list(1, 4)));
    assertEquals(2, actual.indexOf(list(2, 3)));
    assertEquals(3, actual.indexOf(list(2, 4)));
    assertEquals(-1, actual.indexOf(list(3, 1)));

    assertEquals(-1, actual.indexOf(list(1)));

  }

  /**
   * Returns the index of the first appearance of the value {@code target} in {@code array}.
   *
   * @param array an array of {@code char} values, possibly empty
   * @param target a primitive {@code char} value
   * @return the least index {@code i} for which {@code array[i] == target}, or {@code -1} if no
   *     such index exists.
   */
  public static int indexOf(char[] array, char target) {

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

  // TODO(kevinb): consider making this public
  private static int indexOf(float[] array, float target, int start, int end) {
    for (int i = start; i < end; i++) {
      if (array[i] == target) {
        return i;
      }
    }
    return -1;
  }

  /**

    }
    this.axesSizeProduct = axesSizeProduct;
  }

  private int getAxisIndexForProductIndex(int index, int axis) {
    return (index / axesSizeProduct[axis + 1]) % axes.get(axis).size();
  }

  @Override
  public int indexOf(@CheckForNull Object o) {
    if (!(o instanceof List)) {
      return -1;
    }
    List<?> list = (List<?>) o;
    if (list.size() != axes.size()) {

      }
    } else {
      this.handshake = null
      this.handshakeServerNames = listOf()
    }

    if (requestLine.isNotEmpty()) {
      val methodEnd = requestLine.indexOf(' ')
      val pathEnd = requestLine.indexOf(' ', methodEnd + 1)
      this.method = requestLine.substring(0, methodEnd)
      var path = requestLine.substring(methodEnd + 1, pathEnd)
      if (!path.startsWith("/")) {
        path = "/"
      }