}
        };

        // When/Then
        assertFalse(iterator.hasNext(), "Should not have next when advance returns null");
        // The iterator returns null when no elements, doesn't throw exception
        assertNull(iterator.next(), "Should return null when no next element");
    }

    /**
     * Test multiple iterations with mixed filtering results.
     */
    @Test

        assertEquals(0, result);
    }

    @Test
    @DisplayName("Test all read methods with null buffer")
    void testReadMethodsWithNullBuffer() {
        // Even with null buffer, methods should return 0 without throwing exception
        int result = response.readSetupWireFormat(null, 0, 0);
        assertEquals(0, result);

        result = response.readParametersWireFormat(null, 0, 0);

                if (cleanupCalled != null) {
                    cleanupCalled.set(true);
                }
                if (cleanupRetries != null) {
                    cleanupRetries.set(remainingRetries);
                }
                if (cleanupName != null) {
                    cleanupName.set(operationName);
                }
                if (cleanupData != null) {
                    cleanupData.set(data);

     * created automatically.
     *
     * @param output The file to serialize the model to, must not be {@code null}.
     * @param options The options to use for serialization, may be {@code null} to use the default values.
     * @param model The model to serialize, must not be {@code null}.
     * @throws IOException If the model could not be serialized.
     */

        final LogNotificationAppender result = LogNotificationAppender.createAppender("testAppender", "ERROR", null, null);
        assertNotNull(result);
    }

    @Test
    public void test_createAppender_nullName() {
        final LogNotificationAppender result = LogNotificationAppender.createAppender(null, "ERROR", null, null);
        assertNull(result);
    }

    @Test
    public void test_createAppender_defaultLevel() {

  public void testContains_nullNotContainedButAllowed() {
    assertFalse("containsKey(null) should return false", getMap().containsKey(null));
  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
  public void testContains_nullNotContainedAndUnsupported() {
    expectNullKeyMissingWhenNullKeysUnsupported("containsKey(null) should return false or throw");
  }

  @MapFeature.Require(ALLOWS_NULL_KEYS)

        if (langs == null || langs.length == 0) {
            final List<AnalyzeToken> tokens = analyzer.analyze(searchWord, "", null);
            return tokens == null || tokens.size() == 0;
        }
        for (final String lang : langs) {
            final List<AnalyzeToken> tokens = analyzer.analyze(searchWord, field, lang);
            if (tokens != null && tokens.size() > 0) {
                return false;

        if (badWord.contains(" ") || badWord.contains("  ")) {
            return "badWord contains space.";
        }
        return null;
    }

    /**
     * Update default bad words.
     */
    protected static void updateDefaultBadwords() {
        if (defaultWords != null) {
            return;
        }

        final List<String> list = new ArrayList<>();

                response.dataLength = 1;
                // The response buffer points to the internal tmp buffer
                if (response.b != null && response.off < response.b.length) {
                    response.b[response.off] = 42; // Return byte value 42
                }
                return null;
            }
        }).when(smbFile).send(any(SmbComReadAndX.class), any(SmbComReadAndXResponse.class));

    @Optional
    public FileCollection getNoticeFiles() {
        FileTree tree = null;
        for (File dir : licensesDirs) {
            if (tree == null) {
                tree = getProject().fileTree(dir);
            } else {
                tree = tree.plus(getProject().fileTree(dir));
            }
        }
        return tree == null ? null : tree.matching(patternFilterable -> patternFilterable.include("**/*-NOTICE.txt"));