@Override
        public Comparator getComparator() {
          return (o1, o2) -> {
            if (o1 instanceof PluginDescriptorTreeElement e1 && o2 instanceof PluginDescriptorTreeElement e2) {
              if (e1.isTopLevelNode() && e2.isTopLevelNode()) {
                return 0;
              }
            }

            //noinspection unchecked
            return ALPHA_SORTER.getComparator().compare(o1, o2);
          };
        }
@Override
        public Comparator getComparator()