code: private static @Nullable Collection<IOException> deleteRecursivelyInsecure(Path path) {
      Collection<IOException> exceptions = null;
      try {
        if (Files.isDirectory(path, NOFOLLOW_LINKS)) {
          try (DirectoryStream<Path> stream = Files.newDirectoryStream(path)) {
            exceptions = deleteDirectoryContentsInsecure(stream);
          }
        }
  
        // If exceptions is not null, something went wrong trying to delete the contents of the
        // directory, so we shouldn't try to delete the directory as it will probably fail.
        if (exceptions == null) {
          Files.delete(path);
        }
  
        return exceptions;
      } catch (IOException e) {
        return addException(exceptions, e);
      }
    }
docs: Insecure recursive delete for file systems that don't support {@code SecureDirectoryStream}.
  Returns a collection of exceptions that occurred or null if no exceptions were thrown.