* is matched in this fluent iterable, a {@link NullPointerException} will be thrown.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code stream.filter(predicate).findFirst()}.
   */
  public final Optional<@NonNull E> firstMatch(Predicate<? super E> predicate) {
    // Unsafe, but we can't do much about it now.
    return Iterables.<@NonNull E>tryFind((Iterable<@NonNull E>) getDelegate(), predicate);
  }

  /**

   * is matched in this fluent iterable, a {@link NullPointerException} will be thrown.
   *
   * <p><b>{@code Stream} equivalent:</b> {@code stream.filter(predicate).findFirst()}.
   */
  public final Optional<@NonNull E> firstMatch(Predicate<? super E> predicate) {
    // Unsafe, but we can't do much about it now.
    return Iterables.<@NonNull E>tryFind((Iterable<@NonNull E>) getDelegate(), predicate);
  }

  /**

        // Setup mock behavior for multiple calls
        List<FileNotifyInformation> firstBatch = Arrays.asList(fileNotifyInfo1);
        List<FileNotifyInformation> secondBatch = Arrays.asList(fileNotifyInfo2, fileNotifyInfo3);
        List<FileNotifyInformation> thirdBatch = Collections.emptyList();

        when(watchHandle.watch()).thenReturn(firstBatch).thenReturn(secondBatch).thenReturn(thirdBatch);

        // Execute multiple calls