private static void addPrefixedPaths(NavigableSet<String> paths, String prefix, Collection<? super String> result) {
    var possibleRoot = paths.ceiling(prefix);
    if (possibleRoot != null && FileUtil.startsWith(possibleRoot, prefix)) {
      // It's worth going for the set and iterator
      for (var root : paths.tailSet(prefix, false)) {
        if (FileUtil.startsWith(root, prefix)) {
          result.add(root);
        }
        else {
          return;
        }
      }
    }
  }
private static void addPrefixedPaths(NavigableSet<String> paths, String prefix, Collection<? super String> result)