### Question:
SftpDownloader { @Deprecated public static KeyCryptoBuilder getKeyCryptoBuilder() { return new SimpleKeyCryptoBuilder(); } private  SftpDownloader(); static Downloader createDownloader(final FtpProduct product); @Deprecated static KeyCryptoBuilder getKeyCryptoBuilder(); @Deprecated static UserPassBuilder getUserPassBuilder();  }### Answer:
@SuppressWarnings("deprecation") @Test public void testGetKeyCryptoBuilder() { assertThat(SftpDownloader.getKeyCryptoBuilder()).isInstanceOf(SimpleKeyCryptoBuilder.class); }