buf.append("},");
        final Classes classes = jvmStats.getClasses();
        buf.append("\"classes\":{");
        append(buf, "loaded", () -> classes.getLoadedClassCount()).append(',');
        append(buf, "total_loaded", () -> classes.getTotalLoadedClassCount()).append(',');
        append(buf, "unloaded", () -> classes.getUnloadedClassCount());
        buf.append("},");
        append(buf, "uptime", () -> jvmStats.getUptime().getMillis());

import org.codelibs.core.concurrent.CommonPoolUtil;
import org.codelibs.core.lang.ThreadUtil;

/**
 * The abstract helper for configuration.
 *
 * This class provides a basic framework for managing configurations that can be reloaded.
 * It includes functionality for updating configurations in a separate thread and controlling the reloading interval.
 */
public abstract class AbstractConfigHelper {

    /**
     * Default constructor.
     */

 */
public class UploadForm {

    /**
     * The multipart file containing design resources to be uploaded.
     * This can include CSS files, JSP templates, images, or other design assets.
     */
    @Required
    public MultipartFormFile designFile;

    /**
     * The name for the design file being uploaded.
     * Must not contain invalid file system characters like backslash, colon, asterisk, etc.
     */

 */
public class UploadForm {

    /**
     * The storage path where the file should be uploaded.
     * If not specified, the file will be stored in the default location.
     */
    public String path;

    /**
     * The multipart file to be uploaded to the storage system.
     * This file will be stored in the specified path or default location.
     */
    @Required

    }

    /**
     * Gets the uploader name.
     * @return the uploader
     */
    public String getUploader() {
        return uploader;
    }

    /**
     * Sets the uploader name.
     * @param uploader the uploader to set
     */
    public void setUploader(final String uploader) {
        this.uploader = uploader;
    }

    /**

     */
    public ItemForm() {
        // Default constructor
    }

    /** The name of the storage item, limited to 100 characters */
    @Size(max = 100)
    public String name;

    /** The file to be uploaded for the storage item */
    public MultipartFormFile uploadFile;

/**
 * Form class for backup file upload.
 * This form handles file uploads for backup and restore operations.
 */
public class UploadForm {

    /**
     * The backup file to be uploaded.
     */
    @Required
    public MultipartFormFile bulkFile;

    /**
     * Default constructor for UploadForm.
     */
    public UploadForm() {
        // Default constructor
    }

 * that contain words to be filtered from search results.
 */
public class UploadForm {

    /**
     * The multipart file containing bad words to be uploaded.
     * This file should contain a list of words that will be filtered from search results.
     */
    @Required
    public MultipartFormFile badWordFile;

    /**
     * Default constructor for UploadForm.

 * that define search behaviors and request handling.
 */
public class UploadForm {

    /**
     * The multipart file containing the search request configurations to be uploaded.
     * This file should contain search request definitions and configurations.
     */
    @Required
    public MultipartFormFile requestFile;

    /**
     * Default constructor for UploadForm.

 * This form is used in the admin interface to upload elevate word configuration files.
 */
public class UploadForm {

    /**
     * The multipart file containing the elevate word configurations to be uploaded.
     * This file should contain definitions for words or documents that should be elevated in search results.
     */
    @Required
    public MultipartFormFile elevateWordFile;

    /**