src/java.base/share/classes/java/net/URISyntaxException.java

@@ -36,10 +36,11 @@
  */
 
 public class URISyntaxException
     extends Exception
 {
+    @java.io.Serial
     private static final long serialVersionUID = 2137979680897488891L;
 
     private String input;
     private int index;