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

@@ -35,10 +35,11 @@
  *
  * @author  unascribed
  * @since   1.0
  */
 public class IllegalAccessError extends IncompatibleClassChangeError {
+    @java.io.Serial
     private static final long serialVersionUID = -8988904074992417891L;
 
     /**
      * Constructs an <code>IllegalAccessError</code> with no detail message.
      */