import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.ReqHeaderPager;
import org.codelibs.fess.app.service.RequestHeaderService;
import org.codelibs.fess.app.service.WebConfigService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.SystemHelper;

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.WebAuthPager;
import org.codelibs.fess.app.service.WebAuthenticationService;
import org.codelibs.fess.app.service.WebConfigService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.SystemHelper;

Not every module contributes to every element.

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.LabelTypePager;
import org.codelibs.fess.app.service.LabelTypeService;
import org.codelibs.fess.app.service.RoleTypeService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.PermissionHelper;

     * @param ecsVersion The ECS version.
     */
    public void setEcsVersion(final String ecsVersion) {
        this.ecsVersion = ecsVersion;
    }

    /**
     * Set the ECS service name.
     * @param ecsServiceName The ECS service name.
     */
    public void setEcsServiceName(final String ecsServiceName) {
        this.ecsServiceName = ecsServiceName;
    }

    /**
     * Set the ECS event dataset.

import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing user operations in the Fess search system.
 * This service provides CRUD operations for user management, including user authentication,
 * password management, and user listing with pagination support.
 *
 */
public class UserService {

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;
import org.codelibs.fess.app.pager.DuplicateHostPager;
import org.codelibs.fess.app.service.DuplicateHostService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.base.FessAdminAction;
import org.codelibs.fess.helper.SystemHelper;

## Decision

Organize the Gradle code base into a set of coarse-grained "architecture modules".
An architecture module is responsible for providing a coherent set of features and:

- Provides a set of APIs and services for use from outside the module.
- Has a private implementation.
- Is owned by a single team. A team may own multiple architecture modules.

The modules are arranged into several different "Gradle platforms".

One particular example is when a [method returns `null` if and only if its argument is `null`](https://github.com/gradle/gradle/blob/674b8430b024f03cae24f1e4dd6dbaa78b557dae/platforms/core-runtime/base-services/src/main/java/org/gradle/util/internal/TextUtil.java#L163).
Prefer either:
  * Provide only non-nullable version and move the `null` check to the call site (if the number of nullable callsites is low).

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.DuplicateHostPager;
import org.codelibs.fess.app.service.DuplicateHostService;
import org.codelibs.fess.app.web.CrudMode;
import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiConfigResponse;