* Note: Current implementation throws NullPointerException for null strings.
     */
    @Test
    void testCheck_withNullStringAndZeroPointer() {
        // A zero pointer indicates a null string
        PacUnicodeString pacString = new PacUnicodeString((short) 0, (short) 0, 0);
        String testString = null;

    }

    @Test
    @DisplayName("Constructor should handle null tree handle")
    void testConstructor_NullTreeHandle_ThrowsNPE() throws Exception {
        // Given: Valid parent but null tree handle
        when(locator.getType()).thenReturn(SmbConstants.TYPE_WORKGROUP);
        when(locator.getURL()).thenReturn(createSmbURL("smb://"));

        id = null;
        name = null;
        urls = null;
        userAgent = null;
        numOfThread = null;
        intervalTime = null;
        boost = null;
        available = null;
        sortOrder = null;
        createdBy = null;
        createdTime = null;
        versionNo = null;
        description = null;

    }

    /**

            if (this.root_directory != null) {
                _dst = _dst.deferred;
                this.root_directory.encode(_dst);

            }
            if (this.object_name != null) {
                _dst = _dst.deferred;
                this.object_name.encode(_dst);

            }
            if (this.security_quality_of_service != null) {
                _dst = _dst.deferred;

    }

    @Test
    @DisplayName("Test with null buffer in read methods")
    void testReadMethodsWithNullBuffer() {
        trans2QueryFSInfo = new Trans2QueryFSInformation(config, FileSystemInformation.SMB_INFO_ALLOCATION);

        // All read methods should handle null buffer gracefully by returning 0
        assertEquals(0, trans2QueryFSInfo.readSetupWireFormat(null, 0, 0));

    }

    @Test
    @DisplayName("Test with null buffer in read methods")
    void testReadMethodsWithNullBuffer() {
        trans2SetFileInfo = new Trans2SetFileInformation(config, TEST_FID, mockFileInfo);

        // All read methods should handle null buffer gracefully
        assertEquals(0, trans2SetFileInfo.readSetupWireFormat(null, 0, 0));

xt-align:center;width:2em;line-height:inherit}.fa-border{border:.08em solid #eee;border-radius:.1em;padding:.2em .25em .15em}.fa-pull-left{float:left}.fa-pull-right{float:right}.fa.fa-pull-left,.fab.fa-pull-left,.fal.fa-pull-left,.far.fa-pull-left,.fas.fa-pull-left{margin-right:.3em}.fa.fa-pull-right,.fab.fa-pull-right,.fal.fa-pull-right,.far.fa-pull-right,.fas.fa-pull-right{margin-left:.3em}.fa-spin{-webkit-animation:fa-spin 2s linear infinite;animation:fa-spin 2s linear infinite}.fa-pulse{-web...

        // Assert - message and cause are null
        assertNull(ex.getMessage(), "Default constructor should have null message");
        assertNull(ex.getCause(), "Default constructor should have null cause");

        // Assert - toString shows class name when message is null
        assertEquals(SMBProtocolDowngradeException.class.getName(), ex.toString());

            if (responseData == null) {
                return null;
            }

            for (Rule rule : rules) {
                if (rule != null && rule.match(responseData)) {
                    return rule;
                }
            }
            return null;
        }

        @Override
        public void addRule(Rule rule) {
            if (rule != null) {
                rules.add(rule);

     * If the input array is {@code null}, an empty stream is returned.
     *
     * @param <T> The type of elements in the stream.
     * @param values The elements to be included in the stream. Can be {@code null}.
     * @return A {@link StreamOf} instance containing the provided values, or an empty stream if {@code values} is {@code null}.
     */
    @SafeVarargs