assertEquals("User 2", messages.get(0).getContent());
        assertEquals(ChatMessage.ROLE_ASSISTANT, messages.get(1).getRole());
        assertEquals("Assistant 2", messages.get(1).getContent());
        assertEquals(ChatMessage.ROLE_USER, messages.get(2).getRole());
        assertEquals("User 3", messages.get(2).getContent());
        assertEquals(ChatMessage.ROLE_ASSISTANT, messages.get(3).getRole());

        return connection.getHeaderField(index);
    }

    @Override
    public Object getContent() throws IOException {
        try {
            handshake();
        } catch (final IOException ex) {}
        return connection.getContent();
    }

    @Override
    public Object getContent(final Class[] classes) throws IOException {
        try {
            handshake();

        assertEquals("Q1", history.get(0).getContent());
        assertEquals("assistant", history.get(1).getRole());
        assertEquals("A1", history.get(1).getContent());
        assertEquals("user", history.get(2).getRole());
        assertEquals("Q2", history.get(2).getContent());
        assertEquals("assistant", history.get(3).getRole());
        assertEquals("A2", history.get(3).getContent());
    }

    @Test

                } else {
                    String content;
                    try {
                        content = new String(InputStreamUtil.getBytes(entity.getContent()), Constants.UTF_8_CHARSET);
                    } catch (final IOException e) {
                        content = e.getMessage();
                    }

        try (final InputStream in = responseData.getResponseBody()) {
            final ExtractData extractData = getExtractData(extractor, in, createExtractParams(responseData, crawlingConfig));
            content = extractData.getContent();
            if (fessConfig.isCrawlerDocumentFileIgnoreEmptyContent() && StringUtil.isBlank(content)) {
                return null;
            }
            if (getLogger().isDebugEnabled()) {

                        result.getMessage().getContent() != null ? result.getMessage().getContent().length() : 0);
            }

            writeJsonResponse(response, HttpServletResponse.SC_OK,
                    createSuccessResponse(result.getSessionId(), result.getMessage().getContent(), result.getMessage().getSources()));

        } catch (final Exception e) {

        String testContent = "42";
        byte[] data = testContent.getBytes("UTF-8");
        ContentCache cache = new ContentCache(data);
        response.setContentCache(cache);

        Integer result = response.getContent(r -> Integer.parseInt(r.getContentAsString()));

        assertEquals(Integer.valueOf(42), result);
    }

    @Test
    public void testCloseWithContentCache() throws IOException {

        get() = receiverTypeReference?.text

    private
    val KtNamedDeclaration.sinceVersion: String
        get() = docComment?.getDefaultSection()?.findTagsByName("since")?.singleOrNull()?.getContent()
            ?: VERSION_NOT_FOUND

    //                                       ---------------
    protected final Map<String, PropertyGateway> _epgMap = newHashMap();
    {
        setupEpg(_epgMap, et -> ((RelatedContent) et).getContent(), (et, vl) -> ((RelatedContent) et).setContent(DfTypeUtil.toString(vl)),
                "content");
        setupEpg(_epgMap, et -> ((RelatedContent) et).getCreatedBy(),

     * @param content the raw content text to process
     * @param dataMap additional data map
     * @return the normalized content, or empty string if content is null
     */
    public String getContent(final CrawlingConfig crawlingConfig, final ResponseData responseData, final String content,
            final Map<String, Object> dataMap) {
        if (content == null) {
            return StringUtil.EMPTY; // empty