src/java.desktop/share/classes/com/sun/awt/AWTUtilities.java

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  /*
!  * Copyright (c) 2008, 2009, 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) 2008, 2017, 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
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  package com.sun.awt;
  
  import java.awt.*;
  
+ import javax.swing.JRootPane;
+ 
  import sun.awt.AWTAccessor;
  import sun.awt.SunToolkit;
  
  /**
   * A collection of utility methods for AWT.
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       * <p>Also note that the window must not be in the full-screen mode
       * when making it non-opaque. Otherwise the IllegalArgumentException
       * is thrown.
       * <p>If the window is a {@code Frame} or a {@code Dialog}, the window must
       * be undecorated prior to enabling the per-pixel translucency effect (see
!      * {@link Frame#setUndecorated()} and/or {@link Dialog#setUndecorated()}).
       * If the window becomes decorated through a subsequent call to the
       * corresponding {@code setUndecorated()} method, the per-pixel
       * translucency effect will be disabled and the opaque property reset to
       * {@code true}.
       * <p>Depending on the platform, the method may return without
--- 323,333 ----
       * <p>Also note that the window must not be in the full-screen mode
       * when making it non-opaque. Otherwise the IllegalArgumentException
       * is thrown.
       * <p>If the window is a {@code Frame} or a {@code Dialog}, the window must
       * be undecorated prior to enabling the per-pixel translucency effect (see
!      * {@link Frame#setUndecorated} and/or {@link Dialog#setUndecorated}).
       * If the window becomes decorated through a subsequent call to the
       * corresponding {@code setUndecorated()} method, the per-pixel
       * translucency effect will be disabled and the opaque property reset to
       * {@code true}.
       * <p>Depending on the platform, the method may return without
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       * <li><i>non-empty-shape</i> - the given shape will be cut out from
       * heavyweight components.
       * </ul>
       * <p>
       * The most common example when the 'mixing-cutout' shape is needed is a
!      * glass pane component. The {@link JRootPane#setGlassPane()} method
       * automatically sets the <i>empty-shape</i> as the 'mixing-cutout' shape
       * for the given glass pane component.  If a developer needs some other
       * 'mixing-cutout' shape for the glass pane (which is rare), this must be
       * changed manually after installing the glass pane to the root pane.
       * <p>
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       * <li><i>non-empty-shape</i> - the given shape will be cut out from
       * heavyweight components.
       * </ul>
       * <p>
       * The most common example when the 'mixing-cutout' shape is needed is a
!      * glass pane component. The {@link JRootPane#setGlassPane} method
       * automatically sets the <i>empty-shape</i> as the 'mixing-cutout' shape
       * for the given glass pane component.  If a developer needs some other
       * 'mixing-cutout' shape for the glass pane (which is rare), this must be
       * changed manually after installing the glass pane to the root pane.
       * <p>