Unknown resource closed

  /** Construct a reader for a file. */
  protected DataFileReader(SeekableInput sin, DatumReader<D> reader, boolean closeOnError) throws IOException {
    super(reader);
    try {
      this.sin = new SeekableInputStream(sin);
      initialize(this.sin);
      blockFinished();
    } catch (final Throwable e) {
      if (closeOnError) {
        IOUtils.closeQuietly(sin);
      }
      throw e;
    }
  }