import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.List;
import java.util.Set;

/**
 * Optional features of classes derived from {@code List}.
 *
 * @author George van den Driessche
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible

import com.google.common.collect.testing.features.TesterAnnotation;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Set;

/**
 * Optional features of classes derived from {@code Multimap}.
 *
 * @author Louis Wasserman
 */
@SuppressWarnings("rawtypes") // maybe avoidable if we rework the whole package?
@GwtCompatible

import org.codelibs.fess.dict.kuromoji.KuromojiItem;
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.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.response.render.RenderData;

import org.codelibs.fess.opensearch.config.exentity.RelatedContent;
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;

    /**
     * Key object for statistics tracking that contains an identifier and optional URL.
     * Used when tracking statistics for objects that don't have built-in URL extraction.
     */
    public static class StatsKeyObject {

        /** Unique identifier for this statistics key object. */
        private final String id;

        /** Optional URL associated with this statistics key object. */
        private String url;

        Class<?> processHandleInfoClass = Class.forName("java.lang.ProcessHandle$Info");
        Class<?> optionalClass = Class.forName("java.util.Optional");
        /*
         * We don't *need* to use reflection to access Optional: It's available on all JDKs we
         * support, and Android code won't get this far, anyway, because ProcessHandle is

import org.codelibs.fess.opensearch.config.exentity.ScheduledJob;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;
import org.lastaflute.job.LaCron;

import jakarta.annotation.Resource;

/**
 * Service class for managing scheduled jobs.
 */
public class ScheduledJobService {

    /**

# OkHttp test platform rules uses optional classes.

import org.codelibs.fess.opensearch.config.exbhv.RoleTypeBhv;
import org.codelibs.fess.opensearch.config.exentity.RoleType;
import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing role types.
 */
public class RoleTypeService {

    /**
     * Constructor.
     */

import org.codelibs.fess.Constants;
import org.codelibs.fess.dict.DictionaryException;
import org.codelibs.fess.dict.DictionaryFile;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalEntity;

/**
 * Manages a dictionary file for stopwords.
 * This class handles reading, parsing, and updating files that contain
 * a list of stopwords. Each line in the file represents a single stopword.
 *