--- old/src/java.base/share/classes/javax/net/ssl/SSLProtocolException.java	2019-08-27 17:29:23.850324386 -0700
+++ new/src/java.base/share/classes/javax/net/ssl/SSLProtocolException.java	2019-08-27 17:29:23.654324386 -0700
@@ -36,6 +36,7 @@
 public
 class SSLProtocolException extends SSLException
 {
+    @java.io.Serial
     private static final long serialVersionUID = 5445067063799134928L;
 
     /**