/**
  * {@inheritDoc}
  */
 public function findCommentsByThread(ThreadInterface $thread, $depth = null, $sorterAlias = null)
 {
     $comments = $this->realManager->findCommentsByThread($thread, $depth, $sorterAlias);
     foreach ($comments as $comment) {
         if (!$this->commentAcl->canView($comment)) {
             throw new AccessDeniedException();
         }
     }
     return $comments;
 }