class ReadOnlyFilteredCOSStream extends COSStream {

    @Override
    public boolean indirectLength() {
        return true;
    }

      ReadOnlyFilteredCOSStream(COSDictionary existingDictionary, InputStream stream, long length);
    public  ReadOnlyFilteredCOSStream(COSDictionary existingDictionary, InputStreamSupplier<InputStream> stream,
            long length);

}