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

    /**
     * The expiration time for this response in milliseconds.
     */
    public long expiration;
    /**
     * Flag indicating whether this response has been received.
     */
    public boolean isReceived;

    }

    /**
     * Installs a plugin with the specified name and version.
     *
     * @param body the plugin installation data containing name and version
     * @return JSON response indicating success or failure
     */
    // POST /api/admin/plugin
    @Execute
    public JsonResponse<ApiResult> post$index(final InstallBody body) {
        validateApi(body, messages -> {});

    /** The total number of pages based on the page size and total record count. */
    protected int allPageCount;

    /** Flag indicating whether there is a next page available. */
    protected boolean existNextPage;

    /** Flag indicating whether there is a previous page available. */
    protected boolean existPrevPage;

    /** The record number of the first record on the current page (1-based). */

    @Resource
    protected HttpServletRequest request;

    /** Flag indicating whether search logging is enabled. */
    protected boolean searchLogSupport;

    /** Flag indicating whether favorite functionality is enabled. */
    protected boolean favoriteSupport;

    /** Flag indicating whether thumbnail generation is enabled. */
    protected boolean thumbnailSupport;

    /**

/**
 * metadata graph vertice - just a wrapper around artifact's metadata
 *
 */
@Deprecated
public class MetadataGraphVertex implements Comparable<MetadataGraphVertex> {
    ArtifactMetadata md;

    // indications to use these in comparison
    private boolean compareVersion = false;
    private boolean compareScope = false;

    public MetadataGraphVertex(ArtifactMetadata md) {
        super();
        this.md = md;
    }

    /** The total number of records. */
    private int allRecordCount;

    /** The total number of pages. */
    private int allPageCount;

    /** A flag indicating if a previous page exists. */
    private boolean existPrePage;

    /** A flag indicating if a next page exists. */
    private boolean existNextPage;

    /** A list of page numbers for navigation. */
    private List<Integer> pageNumberList;

   *   ...
   * </pre>
   *
   * <p>The returned handler logs any exception at severity {@code SEVERE} and then shuts down the
   * process with an exit status of 1, indicating abnormal termination.
   */
  public static UncaughtExceptionHandler systemExit() {
    return new Exiter(Runtime.getRuntime()::exit);
  }

  @VisibleForTesting
  interface RuntimeWrapper {

 *
 * @since 4.0.0
 */
@Experimental
public interface CacheMetadata {

    /**
     * Returns the cache retention that should be applied to the associated data.
     *
     * @return The CacheRetention indicating how long data should be retained, or null if
     *         no specific cache retention is defined
     */
    @Nullable
    CacheRetention getCacheRetention();

  protected AbstractService() {}

  /**
   * This method is called by {@link #startAsync} to initiate service startup. The invocation of
   * this method should cause a call to {@link #notifyStarted()}, either during this method's run,
   * or after it has returned. If startup fails, the invocation should cause a call to {@link
   * #notifyFailed(Throwable)} instead.
   *

     *
     * @param <T> the type of the object
     * @param constructor the constructor (must not be {@literal null})
     * @param args the array of objects to be passed as arguments to the constructor invocation
     * @return a new object created by invoking the constructor
     * @throws InstantiationRuntimeException if the class declaring the constructor is abstract