} catch (Throwable t) {
      restoreInterruptIfIsInterruptedException(t);
      // This exception is irrelevant in this thread, but useful for the client.
      setException(t);
      return;
    } finally {
      function = null;
    }

    /*
     * If set()/setValue() throws an Error, we let it propagate. Why? The most likely Error is a

            assertNull(sslSocketFactory);

        } catch (IOException e) {
            fail("Failed to create test certificate file: " + e.getMessage());
        } finally {
            if (invalidCertFile != null && invalidCertFile.exists()) {
                invalidCertFile.delete();
            }
        }
    }

    public void test_init_withNonExistentSSLCertificate() {

        try {
            final int numThreads = 10;
            final int attemptsPerThread = 5;

            Thread[] threads = new Thread[numThreads];
            final AtomicInteger successfulThreads = new AtomicInteger(0);
            final AtomicInteger blockedAttempts = new AtomicInteger(0);
            final AtomicInteger exceptionCount = new AtomicInteger(0);

     */
    protected List<String> getUrlFromTagAttribute(final URL url, final Document document, final String xpath, final String attr,
            final String encoding) {
        if (logger.isDebugEnabled()) {
            logger.debug("Base URL: {}", url);
        }
        final List<String> urlList = new ArrayList<>();
        try {
            final XPathNodes list = getXPathAPI().selectNodeList(document, xpath);

    public void test_concurrentOperations() throws Exception {
        final TestTransformer transformer = new TestTransformer("concurrentTransformer");
        final int threadCount = 5;
        final int operationsPerThread = 10;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        final AtomicInteger successCount = new AtomicInteger(0);

    private static final String ERROR_KEY_SUFFIX = ".error";

    public DefaultUpdateCheckManager() {}

    public DefaultUpdateCheckManager(Logger logger) {
        enableLogging(logger);
    }

    public static final String LAST_UPDATE_TAG = ".lastUpdated";

    private static final String TOUCHFILE_NAME = "resolver-status.properties";

    @Override

        private static final long serialVersionUID = 1L;
        
        private final String path;
        private final HandleGuid createGuid;
        private final byte[] fileId;
        private final HandleType type;
        private final long timeout;
        private final long createTime;
        private volatile long lastAccessTime;
        private final Smb2LeaseKey leaseKey;  // Associated lease if any

    private static final String SEARCH_HELPER = "searchHelper";

    private static final String THEME_HELPER = "themeHelper";

    private static final String PLUGIN_HELPER = "pluginHelper";

    private static final String LANGUAGE_HELPER = "languageHelper";

    private static final String CURL_HELPER = "curlHelper";

//
// The value is useful to stop processing early or when it is necessary to
// deliver a final empty token (which is different from a nil token).
// One could achieve the same behavior with a custom error value but
// providing one here is tidier.
// See the emptyFinalToken example for a use of this value.
var ErrFinalToken = errors.New("final token")

// Scan advances the [Scanner] to the next token, which will then be

                    totalTime.addAndGet(threadEnd - threadStart);

                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                } finally {
                    endLatch.countDown();
                }
            });
        }

        startLatch.countDown(); // Start all threads