void removeStorage(final long storageId) {
    synchronized (storageById) {
      PagedFileStorage removedStorage = storageById.remove((int)(storageId >> 32));
      if (removedStorage != null) {
        Path storageFile = removedStorage.getFile();
        Path storageAbsolutePath = storageFile.toAbsolutePath();
        storageByAbsolutePath.remove(storageAbsolutePath);
        if (KEEP_STACK_TRACE_AT_STORAGE_REGISTRATION) {
          stackTracesOfStorageRegistration.remove(storageAbsolutePath);
        }
      }
    }
  }
void removeStorage(final long storageId)