src/java.desktop/share/classes/java/awt/FocusTraversalPolicy.java

*** 1,7 ****
  /*
!  * Copyright (c) 2000, 2013, 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 68,77 ****
--- 68,82 ----
   * @since 1.4
   */
  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.
       *
       * @param aContainer a focus cycle root of aComponent or focus traversal