test/javax/swing/JInternalFrame/6726866/bug6726866.java

*** 1,7 ****
  /*
!  * Copyright (c) 2009, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2009, 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.
*** 20,38 ****
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  /* @test
!    @bug 6726866
!    @summary Repainting artifacts when resizing or dragging JInternalFrames in non-opaque toplevel
!    @author Alexander Potochkin
     @run applet/manual=yesno bug6726866.html
  */
  
! import javax.swing.*;
! import java.awt.*;
! import java.lang.reflect.Method;
  
  public class bug6726866 extends JApplet {
  
      public void init() {
          JFrame frame = new JFrame("bug6726866");
--- 20,43 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  /* @test
!    @bug 6726866 8186617
!    @summary Repainting artifacts when resizing or dragging JInternalFrames in
!             non-opaque toplevel
     @run applet/manual=yesno bug6726866.html
  */
  
! import java.awt.Color;
! import java.awt.Window;
! 
! import javax.swing.JApplet;
! import javax.swing.JDesktopPane;
! import javax.swing.JFrame;
! import javax.swing.JInternalFrame;
! import javax.swing.JLabel;
  
  public class bug6726866 extends JApplet {
  
      public void init() {
          JFrame frame = new JFrame("bug6726866");
*** 52,67 ****
          frame.setSize(400, 400);
          frame.setVisible(true);
          frame.toFront();
      }
  
!     private void setWindowNonOpaque(Window w) {
!         try {
!             Class<?> c = Class.forName("com.sun.awt.AWTUtilities");
!             Method m = c.getMethod("setWindowOpaque", Window.class, boolean.class);
!             m.invoke(null, w, false);
!         }
!         catch (Exception e) {
!             e.printStackTrace();
          }
      }
  }
--- 57,70 ----
          frame.setSize(400, 400);
          frame.setVisible(true);
          frame.toFront();
      }
  
!     public static void setWindowNonOpaque(Window window) {
!         Color bg = window.getBackground();
!         if (bg == null) {
!             bg = new Color(0, 0, 0, 0);
          }
+         window.setBackground(
+                 new Color(bg.getRed(), bg.getGreen(), bg.getBlue(), 0));
      }
  }