object : DelegatingServerSocketFactory(getDefault()) {
        override fun configureServerSocket(serverSocket: ServerSocket): ServerSocket {
          serverSocket.receiveBufferSize = socketBufferSize
          return serverSocket
        }
      }
    client =
      client
        .newBuilder()
        .socketFactory(
          object : DelegatingSocketFactory(getDefault()) {

        self.exception_handlers.setdefault(HTTPException, http_exception_handler)
        self.exception_handlers.setdefault(
            RequestValidationError, request_validation_exception_handler
        )

        # Starlette still has incorrect type specification for the handlers
        self.exception_handlers.setdefault(
            WebSocketRequestValidationError,

      clientTestRule
        .newClientBuilder()
        .cache(cache)
        .cookieJar(JavaNetCookieJar(cookieManager))
        .build()
  }

  @AfterEach
  fun tearDown() {
    ResponseCache.setDefault(null)
    if (this::cache.isInitialized) {
      cache.delete()
    }
  }

  /**
   * Test that response caching is consistent with the RI and the spec.