buffer.putInt(value);
        baos.write(buffer.array(), 0, 4);
    }

    /**
     * Test constructor with KERB_CHECKSUM_HMAC_MD5 type.
     *
     * @throws IOException if an I/O error occurs
     * @throws PACDecodingException if the PAC is malformed
     */
    @Test
    void testConstructorKerbChecksumHmacMd5() throws IOException, PACDecodingException {
        // Prepare data

    }

    /**
     * Handle channel failure
     *
     * @param failedChannel failed channel
     * @param error error that caused failure
     */
    public void handleFailure(ChannelInfo failedChannel, Exception error) {
        log.warn("Channel {} failed: {}", failedChannel.getChannelId(), error.getMessage());

        // Mark channel as failed
        failedChannel.setState(ChannelState.FAILED);

        assertEquals("/share/file.txt", context.get("path"));
        assertEquals("testuser", context.get("user"));
    }

    @Test
    @DisplayName("Should identify error categories correctly")
    void testErrorCategories() {
        // Network error
        exception = new SmbOperationException(SmbOperationException.ErrorCode.CONNECTION_RESET, "Connection lost");
        assertTrue(exception.isNetworkError());

        CrawlerSystemException exception1 = new CrawlerSystemException(exceptionCause);
        assertSame(exceptionCause, exception1.getCause());

        // With Error cause
        Error errorCause = new Error("Error cause");
        CrawlerSystemException exception2 = new CrawlerSystemException(errorCause);
        assertSame(errorCause, exception2.getCause());

        // With RuntimeException cause

     *
     * @param request The servlet request
     * @param response The servlet response
     * @param chain The filter chain
     * @throws IOException If an I/O error occurs
     * @throws ServletException If a servlet error occurs
     */
    @Override
    public void doFilter(final ServletRequest request, final ServletResponse response, final FilterChain chain)
            throws IOException, ServletException {

Curl.post("https://api.example.com/items")
    .body("{\"name\":\"item1\"}")
    .header("Content-Type", "application/json")
    .execute(
        response -> System.out.println("Async status: " + response.getHttpStatusCode()),
        error -> error.printStackTrace());
```

## API Overview

- `org.codelibs.curl.Curl`: entry point for HTTP methods (GET, POST, PUT, DELETE, HEAD, OPTIONS, CONNECT, TRACE).
- `org.codelibs.curl.CurlRequest`: builder for HTTP requests.

    /**
     * Executes the document purging job.
     * Removes all documents from the search index that have expired based on their expires field.
     *
     * @return a string containing the execution result and any error messages
     */
    public String execute() {
        final SearchEngineClient searchEngineClient = ComponentUtil.getSearchEngineClient();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                    log.error("Failed to create child URL", e);
                    continue;
                }
            }

            try (SmbResource r = adapt(fe)) {
                if (this.filter.accept(r)) {
                    return r;
                }
            } catch (final MalformedURLException e) {
                log.error("Failed to create child URL", e);
                continue;

     *
     * @throws IOException if an I/O error occurs (not thrown in this implementation)
     */
    @Override
    public void close() throws IOException {
        // inputStream.close();
    }

    /**
     * Returns the number of bytes that can be read from this input stream without blocking.
     *
     * @return the number of bytes available
     * @throws IOException if an I/O error occurs
     */
    @Override

    /** The path of the HTML: /error/badRequest.jsp */
    HtmlNext path_Error_BadRequestJsp = new HtmlNext("/error/badRequest.jsp");

    /** The path of the HTML: /error/error.jsp */
    HtmlNext path_Error_ErrorJsp = new HtmlNext("/error/error.jsp");

    /** The path of the HTML: /error/notFound.jsp */
    HtmlNext path_Error_NotFoundJsp = new HtmlNext("/error/notFound.jsp");