--- old/src/java.base/share/classes/javax/net/ssl/SSLSessionBindingEvent.java	2019-08-27 17:29:24.306324386 -0700
+++ new/src/java.base/share/classes/javax/net/ssl/SSLSessionBindingEvent.java	2019-08-27 17:29:24.126324386 -0700
@@ -49,6 +49,7 @@
 class SSLSessionBindingEvent
 extends EventObject
 {
+    @java.io.Serial
     private static final long serialVersionUID = 3989172637106345L;
 
     /**