boolean isParallel = false;
    int characteristics = Spliterator.ORDERED | Spliterator.SIZED | Spliterator.NONNULL;
    long estimatedSize = 0L;
    ImmutableList.Builder<Spliterator<? extends T>> splitrsBuilder =
        new ImmutableList.Builder<>(streams.length);
    for (Stream<? extends T> stream : streams) {
      isParallel |= stream.isParallel();

    public Date getStartTime() {
        return request.getStartTime();
    }

    public Instant getStartInstant() {
        return request.getStartInstant();
    }

    public boolean isParallel() {
        return parallel;
    }

    public void setParallel(boolean parallel) {
        this.parallel = parallel;
    }

    public RepositorySystemSession getRepositorySession() {