private final Class<T> interfaceType;
    private final Method method;
    private final @Nullable Object[] passedArgs;
    private final @Nullable Object returnValue;
    private final AtomicInteger called = new AtomicInteger();

    InteractionTester(Class<T> interfaceType, Method method) {
      this.interfaceType = interfaceType;
      this.method = method;
      this.passedArgs = getParameterValues(method);

        Client client = runner.client();
        SuggestSettings settings = suggester.settings();
        int num = 9999;

        addDocument(indexName, client, num);

        AtomicInteger count = new AtomicInteger(0);
        Set<String> valueSet = Collections.synchronizedSet(new HashSet<>());
        Thread[] threads = new Thread[threadNum];
        ESSourceReader reader = new ESSourceReader(client, settings, indexName);

  }

  private static void insertIntoReplica(Map<Integer, AtomicInteger> replica, int newValue) {
    if (replica.containsKey(newValue)) {
      replica.get(newValue).incrementAndGet();
    } else {
      replica.put(newValue, new AtomicInteger(1));
    }
  }

  private static void removeMinFromReplica(
      SortedMap<Integer, AtomicInteger> replica, int minValue) {
    Integer replicatedMinValue = replica.firstKey();

    private ServerSocket serverSocket;
    private final AtomicBoolean running = new AtomicBoolean(false);
    private final AtomicInteger registrationCounter = new AtomicInteger(0);
    private final ConcurrentHashMap<String, MockRegistration> registrations = new ConcurrentHashMap<>();
    private Thread serverThread;

    /**
     * Mock registration data
     */

        ExecutorService executor = Executors.newFixedThreadPool(threadCount);
        CountDownLatch startLatch = new CountDownLatch(1);
        CountDownLatch endLatch = new CountDownLatch(threadCount);
        AtomicInteger successCount = new AtomicInteger(0);
        List<Exception> exceptions = new ArrayList<>();

        // When - Multiple threads get and release buffers
        for (int t = 0; t < threadCount; t++) {
            executor.submit(() -> {

        }
    }

    @Test
    public void test_TimeoutWithOnConnectOverride() throws Exception {
        // ## Arrange ##
        final AtomicInteger onConnectReadTimeout = new AtomicInteger(-1);
        final TimeoutRecordingMockHttpURLConnection[] mockHolder = new TimeoutRecordingMockHttpURLConnection[1];
        CurlRequest req = new OpenOverrideCurlRequest(Curl.Method.GET, "http://dummy", u -> {

        suggestHelper.storeAllBadWords(true);

        logger.info("Storing all elevate words.");
        suggestHelper.storeAllElevateWords(true);

        final AtomicInteger exitCode = new AtomicInteger(0);

        if (ComponentUtil.getFessConfig().isSuggestDocuments()) {
            final CountDownLatch latch = new CountDownLatch(1);

            logger.info("Parsing words from indexed documents.");

    private final AtomicLong failedHealthChecks = new AtomicLong(0);
    private final AtomicLong connectionsRemoved = new AtomicLong(0);
    private final AtomicInteger activeConnections = new AtomicInteger(0);
    private final Map<String, ConnectionMetrics> connectionMetrics = new ConcurrentHashMap<>();

    // Proactive health monitoring
    private volatile boolean proactiveHealthCheckEnabled = true;

    private LoadBalancingStrategy strategy;
    private final AtomicInteger roundRobinCounter;

    /**
     * Create channel load balancer
     *
     * @param manager channel manager
     */
    public ChannelLoadBalancer(ChannelManager manager) {
        this.manager = manager;
        this.strategy = LoadBalancingStrategy.ADAPTIVE;
        this.roundRobinCounter = new AtomicInteger(0);
    }

    /**

    assertThat(stats.loadExceptionCount()).isEqualTo(1);
    assertThat(stats.hitCount()).isEqualTo(0);
  }

  public void testReloadAfterFailure() throws ExecutionException {
    AtomicInteger count = new AtomicInteger();
    Exception e = new IllegalStateException("exception to trigger failure on first load()");
    CacheLoader<Integer, String> failOnceFunction =
        new CacheLoader<Integer, String>() {