assertEquals(0, multimap().keys().count(null));
  }

  @CollectionSize.Require(SEVERAL)
  @MapFeature.Require(ALLOWS_NULL_KEYS)
  public void testKeysWithNullKey() {
    resetContainer(mapEntry((K) null, v0()), mapEntry((K) null, v1()), mapEntry(k1(), v0()));
    Multiset<K> keys = multimap().keys();
    assertEquals(2, keys.count(null));
    assertEquals(1, keys.count(k1()));
    assertEquals(3, keys.size());

        if (INSTANCE != null) {
            throw new CIFSException("Singleton context is already initialized");
        }
        final Properties p = new Properties();
        try {
            final String filename = System.getProperty("jcifs.properties");
            if (filename != null && filename.length() > 1) {

                async = false;
                next = null;
                received = false;
                error = false;
                verifyFailed = false;
                expiration = null;
                exception = null;
                mid = 0;
                command = 0;
                digest = null;
                response = null;
            }

            @Override

        // Create Kerb5Context with mocked dependencies
        ctx = new Kerb5Context("host.example", "cifs", null, 0, 0, null);
    }

    @AfterEach
    void tearDown() {
        if (mockedStatic != null) {
            mockedStatic.close();
        }
    }

    private static void setPrivateField(Object target, String name, Object value) throws Exception {

        boolean changed = false;

        if (metadata != null && reference != null) {
            Versioning versioning = metadata.getVersioning();
            Versioning versioningRef = reference.getVersioning();
            if (versioning != null && versioningRef != null) {
                String lastUpdated = versioning.getLastUpdated();

        assertEquals("", item2.getInputValue());

        // Test with null input - should return empty string
        StopwordsItem item3 = new StopwordsItem(3, null);
        assertEquals("", item3.getInputValue());
    }

    public void test_isUpdated() {
        // Test isUpdated method
        StopwordsItem item = new StopwordsItem(1, "original");
        assertFalse(item.isUpdated());

     * @param entryDn the LDAP entry DN
     * @return the extracted role name, or null if not found
     */
    protected String getSearchRoleName(final String entryDn) {
        if (entryDn == null) {
            return null;
        }
        int start = entryDn.toLowerCase(Locale.ROOT).indexOf("cn=");
        if (start == -1) {
            return null;
        }
        start += 3;

        if (path == null || path.isEmpty()) {
            throw new SmbException("Path cannot be null or empty");
        }

        // Check length
        if (path.length() > maxPathLength) {
            throw new SmbException("Path exceeds maximum length: " + path.length() + " > " + maxPathLength);
        }

        // Check for null bytes
        if (NULL_BYTE.matcher(path).find()) {

    }

    public void test_constructor_withNullTypeAndMessage() {
        // Test constructor with both null type and message
        String type = null;
        String message = null;
        InvalidAccessTokenException exception = new InvalidAccessTokenException(type, message);

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

    return RecordedResponse(priorResponse.request, priorResponse, null, null, null)
  }

  /**
   * Asserts that the current response used the network and returns the network response.
   */
  fun networkResponse(): RecordedResponse {
    val networkResponse = response!!.networkResponse!!
    return RecordedResponse(networkResponse.request, networkResponse, null, null, null)
  }