`HandshakeCertificates` holds the TLS certificates required for a TLS handshake. On the server
    it keeps your `HeldCertificate` and its chain. On the client it keeps the root certificates
    that are trusted to sign a server's certificate chain. `HandshakeCertificates` also works with
    mutual TLS where these roles are reversed.

            break;
        case FAVORITE:
            processFavoriteRequest(request, response, chain);
            break;
        case FAVORITES:
            processFavoritesRequest(request, response, chain);
            break;
        case PING:
            processPingRequest(request, response, chain);
            break;
        case SCROLL:

    client =
      client.newBuilder()
        .addInterceptor(
          Interceptor { chain: Interceptor.Chain? ->
            chain!!.proceed(chain.request())
              .use { a -> assertThat(a.body.string()).isEqualTo("a") }
            chain.proceed(chain.request())
          },
        )
        .build()

            CommonServerMessageBlockRequest last = null;
            CommonServerMessageBlockRequest chain = curHead;
            while ( chain != null ) {
                n++;
                int size = chain.size();
                int cost = chain.getCreditCost();
                CommonServerMessageBlockRequest next = chain.getNext();
                if ( log.isTraceEnabled() ) {
                    log.trace(

    inline fun addInterceptor(crossinline block: (chain: Interceptor.Chain) -> Response) =
      addInterceptor(Interceptor { chain -> block(chain) })

    /**
     * Returns a modifiable list of interceptors that observe a single network request and response.
     * These interceptors must call [Interceptor.Chain.proceed] exactly once: it is an error for a

                        negoResp.getCommonCapabilities(),
                        curSessId,
                        token);

                    if ( chain != null ) {
                        request.chain((ServerMessageBlock2) chain);
                    }

                    request.setDigest(this.digest);
                    request.setSessionId(curSessId);

                    try {

    client =
      client.newBuilder()
        .addNetworkInterceptor(
          Interceptor { chain: Interceptor.Chain? ->
            val request =
              chain!!.request().newBuilder()
                .header("Host", "privateobject.com")
                .build()
            chain.proceed(request)
          },
        )
        .build()
    server.enqueue(MockResponse())

    // Add a string with zero slashes: resulting URL gains one slash.
    assertThat(base.newBuilder().addPathSegments("").build().encodedPath)
      .isEqualTo("/a/b/c/")
    assertThat(base.newBuilder().addPathSegments("d").build().encodedPath)
      .isEqualTo("/a/b/c/d")

    // Add a string with one slash: resulting URL gains two slashes.

            ServerMessageBlock2Request<?> cur = cr;

            if ( first != null ) {
                cr.chain(first);
                cur = first;

                for ( ServerMessageBlock2Request<?> req : others ) {
                    cur.chain(req);
                    cur = req;
                }
            }

 * article on <a href="https://github.com/google/guava/wiki/ListenableFutureExplained">{@code
 * ListenableFuture}</a>.
 *
 * <p>The main purpose of {@code ListenableFuture} is to help you chain together a graph of
 * asynchronous operations. You can chain them together manually with calls to methods like {@link
 * Futures#transform(ListenableFuture, Function, Executor) Futures.transform}, but you will often