action.start(HTML.Tag.COMMENT, htmlAttributeSet.EMPTY_HTML_ATTRIBUTE_SET);
action.start(HTML.Tag.COMMENT, new SimpleAttributeSet());
    public void handleComment(char[] data, int pos)    {      if (shouldInsert())        {      TagAction action = (TagAction) tagToAction.get(HTML.Tag.COMMENT);      if (action != null)        {              action.start(HTML.Tag.COMMENT,                            htmlAttributeSet.EMPTY_HTML_ATTRIBUTE_SET);              action.end(HTML.Tag.COMMENT);            }        }    }