@Override
        public String getValidatorPackageName() {
            return "validator";
        }

        @Override
        public String getInterceptorPackageName() {
            return "interceptor";
        }

        @Override
        public String getHelperPackageName() {
            return "helper";
        }

        @Override
        public String getRepositoryPackageName() {

    // Capture the protocol as it is observed by the interceptor.
    val protocolRef = AtomicReference<Protocol?>()
    val interceptor =
      Interceptor { chain: Interceptor.Chain ->
        protocolRef.set(chain.connection()!!.protocol())
        chain.proceed(chain.request())
      }
    client =
      client
        .newBuilder()
        .addNetworkInterceptor(interceptor)
        .build()

    // Seed the cache.
    val url = server.url("/")
    assertThat(get(url).body.string()).isEqualTo("A")

    // Confirm the interceptor isn't exercised.
    client =
      client
        .newBuilder()
        .addNetworkInterceptor(Interceptor { chain: Interceptor.Chain? -> throw AssertionError() })
        .build()
    assertThat(get(url).body.string()).isEqualTo("A")
  }

  @Test