src/java.base/share/classes/sun/util/BuddhistCalendar.java

*** 37,46 ****
--- 37,47 ----
  
  //////////////////
  // Class Variables
  //////////////////
  
+     @java.io.Serial
      private static final long serialVersionUID = -8527488697350388578L;
  
      private static final int BUDDHIST_YEAR_OFFSET = 543;
  
  ///////////////
*** 252,261 ****
--- 253,263 ----
          return sb.toString();
      }
  
      private transient int yearOffset = BUDDHIST_YEAR_OFFSET;
  
+     @java.io.Serial
      private void readObject(ObjectInputStream stream)
          throws IOException, ClassNotFoundException {
          stream.defaultReadObject();
          yearOffset = BUDDHIST_YEAR_OFFSET;
      }