code: @Override
      public void render(DriverRequest httpRequest, String content, Writer pOut) throws IOException, HttpErrorPage {
          LOG.debug("Rendering block " + name + " in page " + page);
          this.out = pOut;
          if (content == null) {
              if (params != null) {
                  for (String value : params.values()) {
                      out.write(value);
                  }
              }
          } else {
              parser.parse(content, this);
          }
      }
docs: {@inheritDoc}