src/java.base/share/classes/java/io/ObjectStreamClass.java

*** 82,92 ****
--- 82,94 ----
  
      /** serialPersistentFields value indicating no serializable fields */
      public static final ObjectStreamField[] NO_FIELDS =
          new ObjectStreamField[0];
  
+     @java.io.Serial
      private static final long serialVersionUID = -6120832682080437368L;
+     @java.io.Serial
      private static final ObjectStreamField[] serialPersistentFields =
          NO_FIELDS;
  
      /** reflection factory for obtaining serialization constructors */
      private static final ReflectionFactory reflFactory =