if (entry != null && entry.needsRefresh()) {
            // Check if lease is still valid
            LeaseEntry leaseEntry = baseLeaseManager.getLease(entry.getLeaseKey());
            if (leaseEntry == null || !leaseEntry.hasReadCache()) {
                // Lease lost, remove cache entry
                directoryCache.remove(directoryPath);
                return null;
            }
        }
        

            // Then
            assertNotNull(os1, "Default output stream should not be null");
            assertNotNull(os2, "Output stream with append should not be null");
            assertNotNull(os3, "Output stream with sharing should not be null");
            assertNotNull(os4, "Output stream with full params should not be null");
            assertSame(mockOutputStream, os1, "Should return expected output stream");

        Map<String, List<String>> allHeaders = headers != null ? new HashMap<>(headers) : new HashMap<>();
        allHeaders.put(null, Collections.singletonList(statusLine)); // Status line
        when(conn.getHeaderFields()).thenReturn(allHeaders);

        // Mock individual header access by both string key and index
        if (headers != null) {
            // Mock by header name

        method.setAccessible(true);

        // Test with null thread
        try {
            method.invoke(crawler, (Thread) null);
        } catch (Exception e) {
            fail("Should not throw exception with null thread");
        }

        // Test with normal thread
        Thread testThread = new Thread(() -> {
            try {

    public FullWidthToHalfWidthAlphabetNormalizer() {
        // nothing
    }

    @Override
    public String normalize(final String text, final String field, final String... langs) {
        if (text == null) {
            return null;
        }
        final char[] chars = new char[text.length()];
        for (int i = 0; i < chars.length; i++) {
            final char c = text.charAt(i);
            if (c >= 'ａ' && c <= 'ｚ') {

            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {
                // Remove comments
                final String replacedLine = line.replaceAll("#.*$", StringUtil.EMPTY).trim();

                // Skip empty lines or comment lines
                if (replacedLine.length() == 0) {
                    if (updater != null) {
                        updater.write(line);

        IndexUpdateCallback callback = new TestIndexUpdateCallback();

        // Execute with null config
        dataStore.store(null, callback, params);

        assertTrue(storeCalled.get());
    }

    @Test
    public void test_store_withNullCallback() {
        // Test store with null callback
        final AtomicBoolean storeCalled = new AtomicBoolean(false);

        dataStore = new DataStore() {

        listener.onFailure(this, null, response)
        return
      }

      val body = response.body

      if (!body.isEventStream()) {
        listener.onFailure(
          this,
          IllegalStateException("Invalid content-type: ${body.contentType()}"),
          response,
        )
        return
      }

      // This is a long-lived response. Cancel full-call timeouts.
      call?.timeout()?.cancel()

            sids[si].origin_server = null;
            sids[si].origin_auth = null;
        }
    }

    static void resolveSids0(final String authorityServerName, final NtlmPasswordAuthentication auth, final SID[] sids) throws IOException {
        DcerpcHandle handle = null;
        LsaPolicyHandle policyHandle = null;

        synchronized (sid_cache) {
            try {

    }

    @Test
    public void test_nullSafeLogout() {
        SpnegoAuthenticator authenticator = new SpnegoAuthenticator();

        // SPNEGO logout should return null (relies on Kerberos infrastructure)
        String logoutUrl = authenticator.logout(null);
        assertNull(logoutUrl);
    }

    @Test
    public void test_nullSafeGetResponse() {
        SpnegoAuthenticator authenticator = new SpnegoAuthenticator();