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

*** 559,565 ****
--- 559,566 ----
       * @since 1.8
       */
      public static final int BYTES = SIZE / Byte.SIZE;
  
      /** use serialVersionUID from JDK 1.1. for interoperability */
+     @java.io.Serial
      private static final long serialVersionUID = -7183698231559129828L;
  }