public static void update(int fileId, @NotNull ID<?, ?> indexName, final long indexCreationStamp) {
    assert fileId > 0;
    ourLock.withWriteLock(fileId, () -> {
      Timestamps stamp = createOrGetTimeStamp(fileId);
      stamp.set(indexName, indexCreationStamp);
      return null;
    });
  }
public static void update(int fileId, @NotNull ID<?, ?> indexName, final long indexCreationStamp)