--- old/src/java.desktop/share/classes/java/awt/ContainerOrderFocusTraversalPolicy.java	2020-08-05 16:55:06.059653600 -0700
+++ new/src/java.desktop/share/classes/java/awt/ContainerOrderFocusTraversalPolicy.java	2020-08-05 16:55:05.448503600 -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
@@ -87,6 +87,11 @@
     private transient Container cachedRoot;
     private transient List<Component> cachedCycle;
 
+    /**
+     * Constructs a {@code ContainerOrderFocusTraversalPolicy}.
+     */
+    public ContainerOrderFocusTraversalPolicy() {}
+
     /*
      * We suppose to use getFocusTraversalCycle & getComponentIndex methods in order
      * to divide the policy into two parts: