assertNull(exception.getMessage());
        assertNull(exception.getCause());
        assertTrue(exception instanceof FessSystemException);
    }

    public void test_constructorWithNullCause() {
        // Test constructor with null cause
        SearchQueryException exception = new SearchQueryException((Throwable) null);

        assertNull(exception.getCause());

        assertNull(auth1.getPassword());

        // Test with null char[] password
        NtlmPasswordAuthenticator auth2 = new NtlmPasswordAuthenticator("testuser", (char[]) null);
        assertNull(auth2.getPassword());

        // Test secure wipe on null password
        auth1.secureWipePassword(); // Should not throw exception
        assertNull(auth1.getPassword());
    }

    /**

  public void testParse_empty() {
    CacheBuilderSpec spec = parse("");
    assertNull(spec.initialCapacity);
    assertNull(spec.maximumSize);
    assertNull(spec.maximumWeight);
    assertNull(spec.concurrencyLevel);
    assertNull(spec.keyStrength);
    assertNull(spec.valueStrength);
    assertNull(spec.writeExpirationTimeUnit);
    assertNull(spec.accessExpirationTimeUnit);

  @CollectionSize.Require(ZERO)
  public void testEmptySetPollFirst() {
    assertNull(navigableSet.pollFirst());
  }

  @CollectionSize.Require(ZERO)
  public void testEmptySetNearby() {
    assertNull(navigableSet.lower(e0()));
    assertNull(navigableSet.floor(e0()));
    assertNull(navigableSet.ceiling(e0()));
    assertNull(navigableSet.higher(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)

    assertEquals("get(present) should return the associated value", v0(), get(k0()));
  }

  public void testGet_no() {
    assertNull("get(notPresent) should return null", get(k3()));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)
  public void testGet_nullNotContainedButAllowed() {
    assertNull("get(null) should return null", get(null));
  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)

    }

    public void test_getConfigType() {
        assertNull(crawlingConfigHelper.getConfigType(null));
        assertNull(crawlingConfigHelper.getConfigType(""));
        assertNull(crawlingConfigHelper.getConfigType("XXX"));
        assertNull(crawlingConfigHelper.getConfigType("W"));
        assertNull(crawlingConfigHelper.getConfigType("F"));
        assertNull(crawlingConfigHelper.getConfigType("D"));

        Smb2LeaseKey key = leaseManager.requestLease(path, requestedState);
        assertNotNull(leaseManager.getLease(key));

        leaseManager.releaseLease(key);

        assertNull(leaseManager.getLease(key));
        assertNull(leaseManager.getLeaseByPath(path));
    }

    @Test
    @DisplayName("Should get lease by path")
    void testGetLeaseByPath() {
        String path = "/share/document.doc";

        assertNull(((SitemapUrl) sitemaps[1]).getChangefreq());
        assertNull(((SitemapUrl) sitemaps[1]).getPriority());

        assertNull(sitemaps[2].getLastmod());
        assertEquals("http://www.example.com/catalog?item=73&desc=vacation_new_zealand", sitemaps[2].getLoc());
        assertNull(((SitemapUrl) sitemaps[2]).getChangefreq());
        assertNull(((SitemapUrl) sitemaps[2]).getPriority());

        crawlerStatsHelper.done(key);
        assertNull(localLogMsg.get());
    }

    public void test_beginDoneWithRecordOnLazy() {
        String key = "test";
        crawlerStatsHelper.begin(key);
        crawlerStatsHelper.record(key, "aaa");
        crawlerStatsHelper.runOnThread(key);
        crawlerStatsHelper.done(key);
        logger.info(localLogMsg.get());
        assertNull(localLogMsg.get());

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withNullMessage() {
        // Test with null message
        LdapConfigurationException exception = new LdapConfigurationException(null);

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }