--- old/src/java.desktop/share/classes/java/awt/FocusTraversalPolicy.java	2020-08-05 16:55:16.134602700 -0700
+++ new/src/java.desktop/share/classes/java/awt/FocusTraversalPolicy.java	2020-08-05 16:55:15.550458600 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2013, 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
@@ -70,6 +70,11 @@
 public abstract class FocusTraversalPolicy {
 
     /**
+     * Constructs a {@code FocusTraversalPolicy}.
+     */
+    protected FocusTraversalPolicy() {}
+
+    /**
      * Returns the Component that should receive the focus after aComponent.
      * aContainer must be a focus cycle root of aComponent or a focus traversal
      * policy provider.