DeferredSocketAdapter(AndroidSocketAdapter.playProviderFactory),
      // Delay and Defer any initialisation of Conscrypt and BouncyCastle
      DeferredSocketAdapter(ConscryptSocketAdapter.factory),
      DeferredSocketAdapter(BouncyCastleSocketAdapter.factory),
    ).filter { it.isSupported() }

  override fun trustManager(sslSocketFactory: SSLSocketFactory): X509TrustManager? =
    socketAdapters

});

// Configure content extraction
container.singleton("tikaExtractor", TikaExtractor.class);
container.singleton("extractorFactory", ExtractorFactory.class, factory -> {
    factory.addExtractor("text/html", container.getComponent("tikaExtractor"));
    factory.addExtractor("application/pdf", container.getComponent("tikaExtractor"));
});

Crawler crawler = container.getComponent("crawler");
crawler.addUrl("https://example.com");

            if (logger.isDebugEnabled()) {
                logger.debug("HTTP Request: {}", httpRequest.getMethod());
            }
            final CorsHandlerFactory factory = ComponentUtil.getCorsHandlerFactory();
            final CorsHandler handler = factory.get(origin);
            if (handler != null) {
                handler.process(origin, request, response);

                if (OPTIONS.equals(httpRequest.getMethod())) {

      Request
        .Builder()
        .url(server.url("/"))
    if (accept != null) {
      builder.header("Accept", accept)
    }
    val request = builder.build()
    val factory = client.asEventSourceFactory()
    return factory.newEventSource(request, listener)
  }

    })
    .build()
```

SAM conversion impacts these APIs:

 * Authenticator
 * Dispatcher.setIdleCallback(Runnable)
 * Dns
 * EventListener.Factory
 * HttpLoggingInterceptor.Logger
 * LoggingEventListener.Factory
 * OkHttpClient.Builder.hostnameVerifier(HostnameVerifier)

JetBrains [is working on][kotlin_sams] SAM conversions of Kotlin interfaces. Expect it in a future

    val request = Request(server.url("/"))
    val response = client.newCall(request).execute()
    response.body.close()

    // This client shares a connection pool but has a different SSL socket factory.
    val handshakeCertificates2 = HandshakeCertificates.Builder().build()
    val anotherClient =
      client
        .newBuilder()
        .sslSocketFactory(
          handshakeCertificates2.sslSocketFactory(),

        if (crawlerClientFactory != null) {
            return crawlerClientFactory;
        }
        final CrawlerClientFactory factory = creator.get();

        final Map<String, String> paramMap = getHandlerParameterMap();

        final Map<String, Object> factoryParamMap = new HashMap<>();
        factory.setInitParameterMap(factoryParamMap);

        // parameters

                .singleton("zipExtractor", ZipExtractor.class)
                .<ExtractorFactory> singleton("extractorFactory", ExtractorFactory.class, factory -> {
                    TikaExtractor tikaExtractor = container.getComponent("tikaExtractor");
                    factory.addExtractor("application/pdf", tikaExtractor);
                });
        emlExtractor = container.getComponent("emlExtractor");
    }

    public void parse(final InputSource is) {
        try {
            final SAXParserFactory factory = SAXParserFactory.newInstance();
            factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_SECURE_PROCESSING, true);
            factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_EXTERNAL_GENERAL_ENTITIES, false);
            factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_EXTERNAL_PARAMETER_ENTITIES, false);

                    final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                    factory.setFeature(Constants.FEATURE_SECURE_PROCESSING, true);
                    factory.setFeature(Constants.FEATURE_EXTERNAL_GENERAL_ENTITIES, false);
                    factory.setFeature(Constants.FEATURE_EXTERNAL_PARAMETER_ENTITIES, false);
                    factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, StringUtil.EMPTY);