src/java.base/share/classes/java/lang/Short.java

*** 577,583 ****
--- 577,584 ----
      public static long toUnsignedLong(short x) {
          return ((long) x) & 0xffffL;
      }
  
      /** use serialVersionUID from JDK 1.1. for interoperability */
+     @java.io.Serial
      private static final long serialVersionUID = 7515723908773894738L;
  }