code: public Map<String, String> getResources() {
      Map<String, String> resourceByResourceName = new HashMap<>();
      String metadata = getMetadata(ICON);
      if (metadata.equals("")) {
        metadata = getFirstIconFile(BUNDLE_ICONS);
      }
      resourceByResourceName.put(ICON, metadata);
      return resourceByResourceName;
    }
docs: the list of resources to publish via http.