}

    // PUT /api/admin/general
    /**
     * Updates the general system settings.
     * Merges the provided settings with existing configuration and applies changes.
     *
     * @param body the general settings data to update
     * @return JSON response with update status
     */
    @Execute
    public JsonResponse<ApiResult> put$index(final EditBody body) {
        validateApi(body, messages -> {});

    //                                                                      ==============
    /**
     * Retrieves and displays cached content for a specific document.
     *
     * @param form the cache form containing document ID and highlight query
     * @return ActionResponse containing the cached document content or error redirect
     */
    @Execute
    public ActionResponse index(final CacheForm form) {

    private static final Logger logger = Logger.getLogger(FessWebResourceRoot.class.getName());

    /**
     * Constructs a new FessWebResourceRoot with the specified context.
     *
     * @param context the Tomcat context for this web resource root
     */
    public FessWebResourceRoot(final Context context) {
        super(context);
    }

    /**

     * Options can be prefixed with version numbers to specify compatibility.
     * Format: "version:option" or "version-:option" (for version and above).
     *
     * @param values the array of JVM options to filter
     * @return the filtered array of JVM options applicable to the current Java version
     */
    public static String[] filterJvmOptions(final String[] values) {

 *     public Collection<Language> provides() {
 *         return Arrays.asList(
 *             language("kotlin"),
 *             language("scala")
 *         );
 *     }
 * }
 * </pre>
 *
 * @param <T> The type of extensible enum to extend
 * @since 4.0.0
 */
@Experimental
@Consumer
public interface ExtensibleEnumProvider<T extends ExtensibleEnum> extends SpiService {

    /**

     * This method is responsible for executing the Maven command or build
     * process based on the information contained in the request.
     *
     * @param invokerRequest the request containing all necessary information for the invocation
     * @return an integer representing the exit code of the invocation (0 typically indicates success)

`Field` works the same way as `Query`, `Path` and `Body`, it has all the same parameters, etc.

/// note | Technical Details

Actually, `Query`, `Path` and others you'll see next create objects of subclasses of a common `Param` class, which is itself a subclass of Pydantic's `FieldInfo` class.

And Pydantic's `Field` returns an instance of `FieldInfo` as well.

import java.io.UnsupportedEncodingException;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.Constants;

/**
 * Implementation of the {@link AccessResultData} interface.
 *
 * @param <IDTYPE> the type of the identifier
 */
public class AccessResultDataImpl<IDTYPE> implements AccessResultData<IDTYPE> {
    /** The unique identifier for the access result data. */
    protected IDTYPE id;

     *
     * @return the HTML response
     */
    @Execute
    public HtmlResponse index() {
        return asIndexHtml();
    }

    /**
     * Changes the user password.
     *
     * @param form the profile form
     * @return the HTML response
     */
    @Execute
    public HtmlResponse changePassword(final ProfileForm form) {
        final VaErrorHook toIndexPage = () -> {

    private static final int STRUCTURE_SIZE = 16;

    private byte[] fileId; // 16-byte file ID from previous open

    /**
     * Create a new durable handle reconnect context
     * @param fileId the 16-byte file ID from the previous open
     */
    public DurableHandleReconnect(byte[] fileId) {
        if (fileId.length != 16) {
            throw new IllegalArgumentException("File ID must be 16 bytes");