code: private String getConfigInfo() {
      StringBuilder builder = new StringBuilder();
  
      builder.append("<div id='hub-config-container'>");
      GridHubConfiguration config = getRegistry().getHub().getConfiguration();
      builder.append("<div id='hub-config-content'>");
      builder.append("<b>Config for the hub :</b><br/>");
      builder.append(prettyHtmlPrint(config));
      builder.append(getVerboseConfig()); // Display verbose configuration details
      builder.append("</div>"); // End of Config Content
  
      // Display View/Hide Link at the bottom beneath the details
      builder.append("<a id='config-view-toggle' href='#'>View Config</a>");
      builder.append("</div>"); // End of Config Container
      return builder.toString();
    }
docs: retracing how the hub config was built to help debugging.
  
  @return html representation of the hub config