* {@code expectedInsertions} that was used when constructing the filter.
   *
   * @since 22.0
   */
  public long approximateElementCount() {
    long bitSize = bits.bitSize();
    long bitCount = bits.bitCount();

    /*
     * Each insertion is expected to reduce the # of clear bits by a factor of

<img src="/img/async/concurrent-burgers/concurrent-burgers-04.png" class="illustration">

Pendant que vous attendez, vous allez choisir une table avec votre crush 😍, vous discutez avec votre crush 😍 pendant un long moment (les burgers étant "magnifiques" ils sont très longs à préparer ✨🍔✨).

        @Override
        public List<String> convert(String text, String field, String... langs) throws IOException {
            if (text == null || text.isEmpty()) {
                return Collections.emptyList();
            }

            List<String> readings = new ArrayList<>();

            if (langs == null || langs.length == 0) {
                readings.add(text.toUpperCase());
            } else {

        // Test convert with null languages
        String text = "test text";
        String field = "content";
        String[] langs = null;

        List<String> results = converter.convert(text, field, langs);

        assertNotNull(results);
        // Results may vary based on analyzer configuration
    }

    @Test

    private void cleanupOldRateLimitCounters(long currentWindow) {
        // Clean up counters from previous windows to prevent memory leaks
        rateLimitCounters.entrySet().removeIf(entry -> {
            String key = entry.getKey();
            int lastUnderscore = key.lastIndexOf('_');
            if (lastUnderscore > 0) {
                try {
                    long window = Long.parseLong(key.substring(lastUnderscore + 1));

    public void testAuthenticationTimestamp() throws InterruptedException {
        long beforeCreation = System.currentTimeMillis();

        NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("user", "TimestampPass123!");

        long afterCreation = System.currentTimeMillis();

        // Set a reasonable TTL
        auth.setAuthenticationTTL(1000); // 1 second

            private final long totalRequests;
            private final long totalFailures;
            private final double failureRate;
            private final long averageResponseTime;
            private final long minResponseTime;
            private final long maxResponseTime;

            public WindowMetrics(long totalRequests, long totalFailures, double failureRate, long averageResponseTime, long minResponseTime,

    /** The product version string. */
    protected String productVersion;

    /** The end-of-life timestamp for the application. */
    protected long eolTime;

    private short systemCpuPercent;

    private long systemCpuCheckTime;

    private long systemCpuCheckInterval = 1000L;

    /** A map of listeners for configuration updates. */

    final ProgressListener progressListener = new ProgressListener() {
      boolean firstUpdate = true;

      @Override public void update(long bytesWritten, long contentLength, boolean done) {
        if (done) {
          System.out.println("completed");
        } else {
          if (firstUpdate) {
            firstUpdate = false;
            if (contentLength == -1) {

     * @return the key associated with the request
     * @throws IOException if an I/O error occurs
     */
    protected <T extends Response> long doSend(final Request request, final T response, final Set<RequestParam> params, final long timeout)
            throws IOException {
        final long firstKey = prepareRequests(request, response, params, timeout);
        doSend(request);
        return firstKey;
    }

    /**