if (htmlContent != null) {
                doneData.put("htmlContent", htmlContent);
            }
            sendSseEvent(writer, "done", doneData);
            if (logger.isDebugEnabled()) {
                logger.debug("SSE stream completed. sessionId={}, hasHtmlContent={}", result.getSessionId(), htmlContent != null);
            }

        } catch (final LlmException e) {

    @Test
    public void test_defensiveCopy_nullArrays() {
        // Test that defensive copy handles null arrays correctly
        SynonymItem item1 = new SynonymItem(1, new String[] { "a" }, new String[] { "x" });

        // Set to null
        item1.setNewInputs(null);
        item1.setNewOutputs(null);

        // Should return null, not crash
        assertNull(item1.getNewInputs());
        assertNull(item1.getNewOutputs());

        existNextPage = false;
        pageSize = getDefaultPageSize();
        currentPageNumber = getDefaultCurrentPageNumber();

        id = null;
        suggestWord = null;
        createdBy = null;
        createdTime = null;
        versionNo = null;

    }

    /**
     * Gets the default current page number.
     * @return The default current page number.
     */

     * @return the converted value or null if not found or conversion fails
     */
    @SuppressWarnings("unchecked")
    public static <T> T getValue(final Map<String, Object> doc, final String key, final Class<T> clazz) {
        if (doc == null || key == null) {
            return null;
        }

        final Object value = doc.get(key);
        if (value == null) {
            return null;
        }

        if (StringUtil.isBlank(requestPath)) {
            return null;
        }
        final String virtualHostKey = ComponentUtil.getVirtualHostHelper().getVirtualHostKey();
        if (StringUtil.isBlank(virtualHostKey)) {
            return null;
        }
        final String prefix = "/" + virtualHostKey;
        if (requestPath.startsWith(prefix)) {

        fessConfig.setLdapMemberofAttribute(form.ldapMemberofAttribute != null ? form.ldapMemberofAttribute : StringUtil.EMPTY);
        fessConfig.setLdapSecurityAuthentication(
                form.ldapSecurityAuthentication != null ? form.ldapSecurityAuthentication : StringUtil.EMPTY);
        fessConfig.setLdapInitialContextFactory(form.ldapInitialContextFactory != null ? form.ldapInitialContextFactory : StringUtil.EMPTY);

        if (available != null) {
            addFieldToSource(sourceMap, "available", available);
        }
        if (crawler != null) {
            addFieldToSource(sourceMap, "crawler", crawler);
        }
        if (createdBy != null) {
            addFieldToSource(sourceMap, "createdBy", createdBy);
        }
        if (createdTime != null) {

        if (authRealm != null) {
            addFieldToSource(sourceMap, "authRealm", authRealm);
        }
        if (createdBy != null) {
            addFieldToSource(sourceMap, "createdBy", createdBy);
        }
        if (createdTime != null) {
            addFieldToSource(sourceMap, "createdTime", createdTime);
        }
        if (hostname != null) {

        // Test constructor with null message
        ThemeException exception = new ThemeException(null);

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

    @Test
    public void test_constructorWithNullMessageAndCause() {
        // Test constructor with null message and cause

        assertTrue(recordCount >= 0, "Record count should be >= 0");

        if (recordCount > 0) {
            List<Map<String, Object>> labels = jsonPath.getList("data");
            assertTrue(labels != null, "Data should not be null when labels exist");
        }
    }

    @Test
    public void testGetLabels_responseStructure() {
        String response = given().contentType("application/json").when().get("/api/v1/labels").asString();