docs: private Manifest addToList(Resource resource) {
          try {
              if (resource != null && resource.exists()) {
                  Manifest manifest = new ManifestEx(resource);
                  manifests.add(manifest);
                  return manifest;
              }
          } catch (Exception e) {
              log.debug("Exception occurred reading manifest: " + resource);
          }
  
          return null;
      }