src/java.base/share/classes/java/text/ChoiceFormat.java

@@ -166,10 +166,11 @@
  * @since 1.1
  */
 public class ChoiceFormat extends NumberFormat {
 
     // Proclaim serial compatibility with 1.1 FCS
+    @java.io.Serial
     private static final long serialVersionUID = 1795184449645032964L;
 
     /**
      * Sets the pattern.
      * @param newPattern See the class description.

@@ -526,10 +527,11 @@
     /**
      * After reading an object from the input stream, do a simple verification
      * to maintain class invariants.
      * @throws InvalidObjectException if the objects read from the stream is invalid.
      */
+    @java.io.Serial
     private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
         in.defaultReadObject();
         if (choiceLimits.length != choiceFormats.length) {
             throw new InvalidObjectException(
                     "limits and format arrays of different length.");