--- old/src/java.desktop/share/classes/java/awt/DefaultFocusTraversalPolicy.java	2020-08-05 16:55:09.477407800 -0700
+++ new/src/java.desktop/share/classes/java/awt/DefaultFocusTraversalPolicy.java	2020-08-05 16:55:08.874272900 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2020, 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
@@ -76,6 +76,11 @@
     private static final long serialVersionUID = 8876966522510157497L;
 
     /**
+     * Constructs a {@code DefaultFocusTraversalPolicy}.
+     */
+    public DefaultFocusTraversalPolicy() {}
+
+    /**
      * Determines whether a Component is an acceptable choice as the new
      * focus owner. The Component must be visible, displayable, and enabled
      * to be accepted. If client code has explicitly set the focusability