responseData3.setUrl("https://example.com/page3");

        // Execute multiple times - should not throw any exception
        processor.process(responseData1);
        processor.process(responseData2);
        processor.process(responseData3);

        // Verify all ResponseData objects are unchanged
        assertEquals("https://example.com/page1", responseData1.getUrl());

        processor.setNotModifiedHttpCodes(new int[] { 304 });

        ResponseData responseData = new ResponseData();
        responseData.setHttpStatusCode(200);
        assertTrue(processor.isSuccessful(responseData));

        responseData.setHttpStatusCode(100);
        assertFalse(processor.isSuccessful(responseData));
        responseData.setHttpStatusCode(304);
        assertFalse(processor.isSuccessful(responseData));

    }

    @Override
    public ResponseProcessor getResponseProcessor() {
        return responseProcessor;
    }

    /**
     * Sets the response processor for this rule.
     *
     * @param responseProcessor the response processor to set
     */
    public void setResponseProcessor(final ResponseProcessor responseProcessor) {
        this.responseProcessor = responseProcessor;
    }

   *     processor} throws an {@code IOException}
   * @since 16.0
   */
  @CanIgnoreReturnValue // some processors won't return a useful result
  @ParametricNullness
  public <T extends @Nullable Object> T readLines(LineProcessor<T> processor) throws IOException {
    checkNotNull(processor);

    Closer closer = Closer.create();
    try {

   *     processor} throws an {@code IOException}
   * @since 16.0
   */
  @CanIgnoreReturnValue // some processors won't return a useful result
  @ParametricNullness
  public <T extends @Nullable Object> T readLines(LineProcessor<T> processor) throws IOException {
    checkNotNull(processor);

    Closer closer = Closer.create();
    try {

import org.codelibs.fess.crawler.exception.ChildUrlsException;
import org.codelibs.fess.crawler.helper.SitemapsHelper;
import org.codelibs.fess.crawler.processor.ResponseProcessor;

import jakarta.annotation.Resource;

/**
 * A response processor implementation that handles sitemaps.
 * It parses the response body as a SitemapSet, extracts URLs from the sitemaps,
 * and adds them as child URLs to be crawled.
 *
 * <p>

        try {
            this.threadPool = null;
            final RequestProcessor processor = new RequestProcessor(encoding, threshold);
            connect(processor, e -> {
                throw new CurlException("Failed to process a request.", e);
            });
            return processor.getResponse();
        } finally {
            this.threadPool = originalThreadPool;
        }
    }

        try {
            processor.process(responseData);
            fail("Should throw ChildUrlsException");
        } catch (ChildUrlsException e) {
            String message = e.getMessage();
            assertNotNull(message);
            assertTrue(message.contains("SitemapsResponseProcessor"));
            assertTrue(message.contains("#process"));
        }
    }

import org.codelibs.fess.crawler.processor.ResponseProcessor;

/**
 * The Rule interface defines the contract for implementing rules that can be applied to
 * response data in a web crawler. Implementations of this interface should provide logic
 * to determine if a given response data matches the rule, retrieve the rule's identifier,
 * and obtain the associated response processor.
 */
public interface Rule extends Serializable {

    /**
     * Artifact type name for a JAR file that can be placed either on the annotation processor class path
     * or module path. The path (classes or modules) is chosen by the plugin, possibly using heuristic rules.
     */
    String PROCESSOR = "processor";

    /**
     * Artifact type name for a JAR file to unconditionally place on the annotation processor class path.
     * If the JAR is modular, its module information are ignored.
     */