import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.Map;

import org.codelibs.fess.crawler.entity.ExtractData;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for AbstractExtractor base functionality.
 * Focuses on testing the validateInputStream() method and other common functionality.
 */

import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.extractor.ExtractorFactory;
import org.codelibs.fess.crawler.helper.impl.MimeTypeHelperImpl;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * @author shinsuke
 *
 */
public class PdfExtractorTest extends PlainTestCase {
    private static final Logger logger = LogManager.getLogger(PdfExtractorTest.class);

import org.codelibs.fess.opensearch.config.exbhv.ElevateWordToLabelBhv;
import org.codelibs.fess.opensearch.config.exbhv.LabelTypeBhv;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.cbean.result.ListResultBean;

/**
 * @author ESFlute (using FreeGen)
 */
public class ElevateWord extends BsElevateWord {

    private static final long serialVersionUID = 1L;

import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.extractor.ExtractorFactory;
import org.codelibs.fess.crawler.helper.impl.MimeTypeHelperImpl;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * @author shinsuke
 *
 */
public class EmlExtractorTest extends PlainTestCase {
    private static final Logger logger = LogManager.getLogger(EmlExtractorTest.class);

import org.codelibs.fess.opensearch.config.cbean.ca.bs.BsDuplicateHostCA;
import org.codelibs.fess.opensearch.config.cbean.cq.DuplicateHostCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsDuplicateHostCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */

import org.codelibs.fess.opensearch.config.cbean.ca.bs.BsRelatedQueryCA;
import org.codelibs.fess.opensearch.config.cbean.cq.RelatedQueryCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsRelatedQueryCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */

import org.codelibs.fess.opensearch.config.exentity.AccessToken;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.RenderDataUtil;
import org.dbflute.optional.OptionalEntity;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.render.RenderData;

Run the regeneration command:

```bash
# Option 1: Using Maven from project root
mvn dbflute:freegen

# Option 2: Using DBFlute manage script
cd dbflute_fess
./manage.sh    # On Linux/Mac
manage.bat     # On Windows
# Select option 23 (generate)
```

This will regenerate:

import org.codelibs.fess.app.web.api.ApiResult.Status;
import org.codelibs.fess.app.web.base.FessBaseAction;
import org.codelibs.fess.mylasta.action.FessMessages;
import org.dbflute.optional.OptionalThing;
import org.lastaflute.core.message.MessageManager;
import org.lastaflute.web.login.LoginManager;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.ruts.process.ActionRuntime;

import org.codelibs.core.io.CloseableUtil;
import org.codelibs.core.io.ResourceUtil;
import org.codelibs.fess.crawler.container.StandardCrawlerContainer;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * @author shinsuke
 *
 */
public class HtmlXpathExtractorTest extends PlainTestCase {
    private static final Logger logger = LogManager.getLogger(HtmlXpathExtractorTest.class);