--- old/src/java.desktop/share/classes/java/awt/desktop/AppReopenedEvent.java	2018-05-24 21:37:29.000000000 -0700
+++ new/src/java.desktop/share/classes/java/awt/desktop/AppReopenedEvent.java	2018-05-24 21:37:29.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2018, 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
@@ -25,6 +25,9 @@
 
 package java.awt.desktop;
 
+import java.awt.Desktop;
+import java.awt.GraphicsEnvironment;
+import java.awt.HeadlessException;
 
 /**
  * Event sent when the application is asked to re-open itself.
@@ -34,12 +37,19 @@
  * @since 9
  */
 public final class AppReopenedEvent extends AppEvent {
+
     private static final long serialVersionUID = 1503238361530407990L;
 
     /**
-     * Constructs an {@code AppReopenedEvent}
+     * Constructs an {@code AppReopenedEvent}.
+     *
+     * @throws HeadlessException if {@link GraphicsEnvironment#isHeadless()}
+     *         returns {@code true}
+     * @throws UnsupportedOperationException if Desktop API is not supported on
+     *         the current platform
+     * @see Desktop#isDesktopSupported()
+     * @see java.awt.GraphicsEnvironment#isHeadless
      */
     public AppReopenedEvent() {
     }
-
 }