code: public void setChildText(final boolean updateClient, final String text) {
          if (text == null || text.isEmpty()) {
              removeAllChildren();
          } else {
              addInnerHtmls(updateClient, new NoTag(null, text));
          }
      }
docs: sets the child text for this tag.
  
  @param updateClient
  true to update client browser page if it is
  available. The default value is true but it will
  be ignored if there is no client browser page.
  
  @param text
  String which needs to be shown as a child of this
  tag.
  @since 2.1.15