presto-rcfile/src/main/java/io/prestosql/rcfile/BufferedOutputStreamSliceOutput.java/BufferedOutputStreamSliceOutput/close
class BufferedOutputStreamSliceOutput:    @Override
    public void close()
            throws IOException
    {
        try {
            flushBufferToOutputStream();
        }
        finally {
            outputStream.close();
        }
    }