src/java.base/share/classes/sun/reflect/annotation/AnnotationInvocationHandler.java

*** 39,48 ****
--- 39,49 ----
   *
   * @author  Josh Bloch
   * @since   1.5
   */
  class AnnotationInvocationHandler implements InvocationHandler, Serializable {
+     @java.io.Serial
      private static final long serialVersionUID = 6182022883658399397L;
      private final Class<? extends Annotation> type;
      private final Map<String, Object> memberValues;
  
      AnnotationInvocationHandler(Class<? extends Annotation> type, Map<String, Object> memberValues) {
*** 601,610 ****
--- 602,612 ----
          if (type == boolean[].class)
              return Arrays.hashCode((boolean[]) value);
          return Arrays.hashCode((Object[]) value);
      }
  
+     @java.io.Serial
      private void readObject(java.io.ObjectInputStream s)
          throws java.io.IOException, ClassNotFoundException {
          ObjectInputStream.GetField fields = s.readFields();
  
          @SuppressWarnings("unchecked")