private void forceAddCommentToGroup(){
  if (hasRemainingComments()) {
    group.add(comments.get(lastCommentIndex + 1));
  }
  lastCommentIndex++;
}

private void forceAddCommentToGroup ( ) { if ( hasRemainingComments ( ) ) { group . add ( comments . get ( lastCommentIndex + 1 ) ) ; } lastCommentIndex ++ ; }
shifts a new comment into the group
