* Double#valueOf}.
   */
  private static @Nullable Double referenceTryParse(String input) {
    if (input.trim().length() < input.length()) {
      return null;
    }
    try {
      return Double.valueOf(input);
    } catch (NumberFormatException e) {
      return null;
    }
  }

  @GwtIncompatible // Doubles.tryParse
  private static void checkTryParse(String input) {

 * to a situation of trying our least likely noisiest options.
 */
class DeferredSocketAdapter(
  private val socketAdapterFactory: Factory,
) : SocketAdapter {
  private var delegate: SocketAdapter? = null

  override fun isSupported(): Boolean = true

  override fun matchesSocket(sslSocket: SSLSocket): Boolean = socketAdapterFactory.matchesSocket(sslSocket)

  override fun configureTlsExtensions(

  }

  @SuppressWarnings("unchecked")
  // if sortedSet.comparator() is null, the set must be naturally ordered
  public static <E extends @Nullable Object> Comparator<? super E> comparator(
      SortedSet<E> sortedSet) {
    Comparator<? super E> result = sortedSet.comparator();
    if (result == null) {
      result = (Comparator<? super E>) Ordering.natural();
    }
    return result;
  }

    /**
     * Builds the toolchains model from the configured toolchain files.
     *
     * @param userToolchainsFile The path to the toolchains file, may be <code>null</code> to disable parsing.
     * @return The toolchains model or <code>null</code> if no toolchain file was configured or the configured file does
     *         not exist.
     * @throws MisconfiguredToolchainException If the toolchain file exists but cannot be parsed.

     * @return The extracted data.
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            @SuppressWarnings("resource")
            final org.apache.poi.hssf.extractor.ExcelExtractor excelExtractor =

            @Override
            public String getCrawlerWebProtocols() {
                return null;
            }

            @Override
            public String getCrawlerFileProtocols() {
                return null;
            }
        });

        final ProtocolHelper protocolHelper = new ProtocolHelper();
        protocolHelper.init();

                List<@Nullable String> list = new ArrayList<>();
                for (String element : elements) {
                  list.add((element == null) ? null : "q" + element);
                }
                return Collections2.transform(
                    list, from -> isNullOrEmpty(from) ? null : from.substring(1));
              }
            })
        .named("Collections2.transform")
        .withFeatures(

    @Test
    void testMirrorLayoutConsideredForMatching() {
        ArtifactRepository repo = getRepo("a");

        Mirror mirrorA = newMirror("a", "a", null, "http://a");
        Mirror mirrorB = newMirror("b", "a", "p2", "http://b");

        Mirror mirrorC = newMirror("c", "*", null, "http://c");
        Mirror mirrorD = newMirror("d", "*", "p2", "http://d");

        // Test registration with null/empty values
        String regId1 = mockService.registerWitness(null, "192.168.1.100", 1);
        assertNotNull(regId1);

        String regId2 = mockService.registerWitness("", "192.168.1.100", 1);
        assertNotNull(regId2);

        String regId3 = mockService.registerWitness("\\\\server\\share", null, 1);
        assertNotNull(regId3);

 *
 */
public class MessageDigestUtilTest {
    /**
     *
     */
    @Test
    public void testDigest() {
        final String text = "hoge";
        assertNull(MessageDigestUtil.digest("MD5", null));
        assertEquals("ea703e7aa1efda0064eaa507d9e8ab7e", MessageDigestUtil.digest("MD5", text));
        assertEquals("31f30ddbcb1bf8446576f0e64aa4c88a9f055e3c", MessageDigestUtil.digest("SHA-1", text));