src/java.base/share/classes/java/net/Inet6Address.java

*** 361,370 ****
--- 361,371 ----
          }
      }
  
      private final transient Inet6AddressHolder holder6;
  
+     @java.io.Serial
      private static final long serialVersionUID = 6880410070516793377L;
  
      // Perform native initialization
      static { init(); }
  
*** 560,570 ****
       * @serialField scope_id int
       * @serialField scope_id_set boolean
       * @serialField scope_ifname_set boolean
       * @serialField ifname String
       */
! 
      private static final ObjectStreamField[] serialPersistentFields = {
           new ObjectStreamField("ipaddress", byte[].class),
           new ObjectStreamField("scope_id", int.class),
           new ObjectStreamField("scope_id_set", boolean.class),
           new ObjectStreamField("scope_ifname_set", boolean.class),
--- 561,571 ----
       * @serialField scope_id int
       * @serialField scope_id_set boolean
       * @serialField scope_ifname_set boolean
       * @serialField ifname String
       */
!     @java.io.Serial
      private static final ObjectStreamField[] serialPersistentFields = {
           new ObjectStreamField("ipaddress", byte[].class),
           new ObjectStreamField("scope_id", int.class),
           new ObjectStreamField("scope_id_set", boolean.class),
           new ObjectStreamField("scope_ifname_set", boolean.class),
*** 579,588 ****
--- 580,590 ----
      /**
       * restore the state of this object from stream
       * including the scope information, only if the
       * scoped interface name is valid on this system
       */
+     @java.io.Serial
      private void readObject(ObjectInputStream s)
          throws IOException, ClassNotFoundException {
          NetworkInterface scope_ifname = null;
  
          if (getClass().getClassLoader() != null) {
*** 642,651 ****
--- 644,654 ----
      /**
       * default behavior is overridden in order to write the
       * scope_ifname field as a String, rather than a NetworkInterface
       * which is not serializable
       */
+     @java.io.Serial
      private synchronized void writeObject(ObjectOutputStream s)
          throws IOException
      {
              String ifname = null;