--- a/src/java.base/share/classes/java/util/Date.java	Thu Oct 17 20:27:44 2019 +0100
+++ b/src/java.base/share/classes/java/util/Date.java	Thu Oct 17 20:53:35 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1994, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1994, 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
@@ -154,6 +154,7 @@
      * interoperability with JDK1.1. The Date was modified to write
      * and read only the UTC time.
      */
+    @java.io.Serial
     private static final long serialVersionUID = 7523967970034938905L;
 
     /**
@@ -909,7 +910,7 @@
      *            represented by this {@code Date} object is strictly
      *            earlier than the instant represented by {@code when};
      *          {@code false} otherwise.
-     * @exception NullPointerException if {@code when} is null.
+     * @throws    NullPointerException if {@code when} is null.
      */
     public boolean before(Date when) {
         return getMillisOf(this) < getMillisOf(when);
@@ -923,7 +924,7 @@
      *          by this {@code Date} object is strictly later than the
      *          instant represented by {@code when};
      *          {@code false} otherwise.
-     * @exception NullPointerException if {@code when} is null.
+     * @throws    NullPointerException if {@code when} is null.
      */
     public boolean after(Date when) {
         return getMillisOf(this) > getMillisOf(when);
@@ -972,7 +973,7 @@
      *          is before the Date argument; and a value greater than
      *      {@code 0} if this Date is after the Date argument.
      * @since   1.2
-     * @exception NullPointerException if {@code anotherDate} is null.
+     * @throws    NullPointerException if {@code anotherDate} is null.
      */
     public int compareTo(Date anotherDate) {
         long thisTime = getMillisOf(this);
@@ -1318,6 +1319,7 @@
      *             is emitted (long).  This represents the offset from
      *             January 1, 1970, 00:00:00 GMT in milliseconds.
      */
+    @java.io.Serial
     private void writeObject(ObjectOutputStream s)
          throws IOException
     {
@@ -1328,6 +1330,7 @@
     /**
      * Reconstitute this object from a stream (i.e., deserialize it).
      */
+    @java.io.Serial
     private void readObject(ObjectInputStream s)
          throws IOException, ClassNotFoundException
     {
@@ -1350,8 +1353,8 @@
      * @param instant  the instant to convert
      * @return a {@code Date} representing the same point on the time-line as
      *  the provided instant
-     * @exception NullPointerException if {@code instant} is null.
-     * @exception IllegalArgumentException if the instant is too large to
+     * @throws    NullPointerException if {@code instant} is null.
+     * @throws    IllegalArgumentException if the instant is too large to
      *  represent as a {@code Date}
      * @since 1.8
      */