public Comment getCommentById(long commentId) {
   return taskCommentService.getCommentById(commentId);
 }
 public void deleteComment(long taskId, long commentId) {
   taskCommentService.deleteComment(taskId, commentId);
 }
 public List<Comment> getAllCommentsByTaskId(long taskId) {
   return taskCommentService.getAllCommentsByTaskId(taskId);
 }
 public long addComment(long taskId, Comment comment) {
   return taskCommentService.addComment(taskId, comment);
 }