Secure            bool      `json:"secure"`
	CertAuthority     string    `json:"certAuthority"`
	ClientCert        string    `json:"clientCert"`
	ClientKey         string    `json:"clientKey"`
	PingInterval      int64     `json:"pingInterval"`
	QueueDir          string    `json:"queueDir"`
	QueueLimit        uint64    `json:"queueLimit"`
	JetStream         struct {
		Enable bool `json:"enable"`
	} `json:"jetStream"`

    closeWebSockets(webSocket, server)
  }

  @Test
  @Throws(Exception::class)
  fun clientPingsServerOnInterval() {
    client =
      client
        .newBuilder()
        .pingInterval(Duration.ofMillis(500))
        .build()
    webServer.enqueue(
      MockResponse
        .Builder()
        .webSocketUpgrade(serverListener)
        .build(),
    )
    val webSocket = newWebSocket()

			TLSSkipVerify:     env.Get(tlsSkipVerifyEnv, kv.Get(target.NATSTLSSkipVerify)) == config.EnableOn,
			TLSHandshakeFirst: env.Get(tlsHandshakeFirstEnv, kv.Get(target.NATSTLSHandshakeFirst)) == config.EnableOn,
			PingInterval:      pingInterval,
			QueueDir:          env.Get(queueDirEnv, kv.Get(target.NATSQueueDir)),
			QueueLimit:        queueLimit,
			RootCAs:           rootCAs,
		}

    builder = builder.readTimeout(Duration.ofSeconds(0L))
    builder = builder.writeTimeout(0L, TimeUnit.SECONDS)
    builder = builder.writeTimeout(Duration.ofSeconds(0L))
    builder = builder.pingInterval(0L, TimeUnit.SECONDS)
    builder = builder.pingInterval(Duration.ofSeconds(0L))
    builder = builder.proxy(Proxy.NO_PROXY)
    builder = builder.proxySelector(NullProxySelector)
    builder = builder.cookieJar(CookieJar.NO_COOKIES)

    taskFaker.runTasks()
    client.webSocket!!.finishReader()
    client.listener.assertFailure(IOException::class.java, "source is closed")
    assertThat(client.closed).isTrue()
  }

  @Test
  fun pingOnInterval() {
    client.initWebSocket(random, pingIntervalMillis = 500)
    taskFaker.advanceUntil(ns(500L))
    server.processNextFrame() // Ping.
    client.processNextFrame() // Pong.
    taskFaker.advanceUntil(ns(1000L))

		},
		config.KV{
			Key:   target.NATSTLSHandshakeFirst,
			Value: config.FormatBool(cfg.TLSHandshakeFirst),
		},
		config.KV{
			Key:   target.NATSPingInterval,
			Value: strconv.FormatInt(cfg.PingInterval, 10),
		},
		config.KV{
			Key:   target.NATSQueueDir,
			Value: cfg.QueueDir,
		},
		config.KV{
			Key:   target.NATSQueueLimit,
			Value: strconv.Itoa(int(cfg.QueueLimit)),
		},
		config.KV{