--- a/src/java.base/share/classes/javax/crypto/CryptoPermissions.java	Thu Aug 29 10:09:27 2019 -0700
+++ b/src/java.base/share/classes/javax/crypto/CryptoPermissions.java	Thu Aug 29 10:52:21 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -63,11 +63,13 @@
 final class CryptoPermissions extends PermissionCollection
 implements Serializable {
 
+    @java.io.Serial
     private static final long serialVersionUID = 4946547168093391015L;
 
     /**
      * @serialField perms java.util.Hashtable
      */
+    @java.io.Serial
     private static final ObjectStreamField[] serialPersistentFields = {
         new ObjectStreamField("perms", Hashtable.class),
     };
@@ -436,6 +438,7 @@
         return pc;
     }
 
+    @java.io.Serial
     private void readObject(ObjectInputStream s)
         throws IOException, ClassNotFoundException {
         ObjectInputStream.GetField fields = s.readFields();
@@ -450,6 +453,7 @@
         }
     }
 
+    @java.io.Serial
     private void writeObject(ObjectOutputStream s) throws IOException {
         Hashtable<String,PermissionCollection> permTable =
                 new Hashtable<>(perms);