code: @Nullable
    public static AttributeProvider get(String view) {
      AttributeProvider provider = PROVIDERS.get(view);
  
      if (provider == null && view.equals("unix")) {
        // create a new UnixAttributeProvider per file system, as it does some caching that should be
        // cleaned up when the file system is garbage collected
        return new UnixAttributeProvider();
      }
  
      return provider;
    }
docs: Returns the attribute provider for the given view, or {@code null} if the given view is not one
  of the attribute views this supports.