socket.setEnabledCipherSuites(javaNames(spec.cipherSuites()));
        return socket;
      }
    };

    client = new OkHttpClient.Builder()
        .connectionSpecs(Collections.singletonList(spec))
        .sslSocketFactory(customSslSocketFactory, trustManager)
        .build();
  }

  /**
   * Returns the VM's default SSL socket factory, using {@code trustManager} for trusted root
   * certificates.