src/java.base/share/classes/java/lang/module/FindException.java

@@ -35,10 +35,11 @@
  * @since 9
  * @spec JPMS
  */
 
 public class FindException extends RuntimeException {
+    @java.io.Serial
     private static final long serialVersionUID = -5817081036963388391L;
 
     /**
      * Constructs a {@code FindException} with no detail message.
      */