src/java.desktop/windows/classes/sun/awt/windows/WToolkit.java

*** 1,7 ****
  /*
!  * Copyright (c) 1996, 2016, 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) 1996, 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
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 45,54 ****
--- 45,55 ----
  import sun.awt.AWTAccessor;
  import sun.awt.AppContext;
  import sun.awt.AWTAutoShutdown;
  import sun.awt.AWTPermissions;
  import sun.awt.AppContext;
+ import sun.awt.DisplayChangedListener;
  import sun.awt.LightweightFrame;
  import sun.awt.SunToolkit;
  import sun.awt.util.ThreadGroupUtils;
  import sun.awt.Win32GraphicsDevice;
  import sun.awt.Win32GraphicsEnvironment;
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      @Override
      public native int getMaximumCursorColors();
  
      static void paletteChanged() {
!         ((Win32GraphicsEnvironment)GraphicsEnvironment
!         .getLocalGraphicsEnvironment())
!         .paletteChanged();
      }
  
      /*
       * Called from Toolkit native code when a WM_DISPLAYCHANGE occurs.
       * Have Win32GraphicsEnvironment execute the display change code on the
--- 801,814 ----
  
      @Override
      public native int getMaximumCursorColors();
  
      static void paletteChanged() {
!         Object lge = GraphicsEnvironment.getLocalGraphicsEnvironment();
!         if (lge instanceof DisplayChangedListener) {
!             ((DisplayChangedListener) lge).paletteChanged();
!         }
      }
  
      /*
       * Called from Toolkit native code when a WM_DISPLAYCHANGE occurs.
       * Have Win32GraphicsEnvironment execute the display change code on the
*** 814,826 ****
       */
      public static void displayChanged() {
          EventQueue.invokeLater(new Runnable() {
              @Override
              public void run() {
!                 ((Win32GraphicsEnvironment)GraphicsEnvironment
!                 .getLocalGraphicsEnvironment())
!                 .displayChanged();
              }
          });
      }
  
      /**
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       */
      public static void displayChanged() {
          EventQueue.invokeLater(new Runnable() {
              @Override
              public void run() {
!                 Object lge = GraphicsEnvironment.getLocalGraphicsEnvironment();
!                 if (lge instanceof DisplayChangedListener) {
!                     ((DisplayChangedListener) lge).displayChanged();
!                 }
              }
          });
      }
  
      /**