--- old/src/java.base/share/classes/java/lang/StringIndexOutOfBoundsException.java	2019-08-27 17:27:38.046324386 -0700
+++ new/src/java.base/share/classes/java/lang/StringIndexOutOfBoundsException.java	2019-08-27 17:27:37.854324386 -0700
@@ -35,6 +35,7 @@
  * @since 1.0
  */
 public class StringIndexOutOfBoundsException extends IndexOutOfBoundsException {
+    @java.io.Serial
     private static final long serialVersionUID = -6762910422159637258L;
 
     /**