1 /*
   2  * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 import java.awt.*;
  26 
  27 /**
  28  * @test
  29  * @key headful
  30  * @bug 7090424
  31  * @author Sergey Bylokhov
  32  */
  33 public final class ButtonRepaint extends Button {
  34 
  35     public static void main(final String[] args) {
  36         for (int i = 0; i < 10; ++i) {
  37             final Frame frame = new Frame();
  38             frame.setSize(300, 300);
  39             frame.setLocationRelativeTo(null);
  40             ButtonRepaint button = new ButtonRepaint();
  41             frame.add(button);
  42             frame.setVisible(true);
  43             sleep();
  44             button.test();
  45             frame.dispose();
  46         }
  47     }
  48 
  49     private static void sleep() {
  50         try {
  51             Thread.sleep(2000);
  52         } catch (InterruptedException ignored) {
  53         }
  54     }
  55 
  56     @Override
  57     public void paint(final Graphics g) {
  58         super.paint(g);
  59         if (!EventQueue.isDispatchThread()) {
  60             throw new RuntimeException("Wrong thread");
  61         }
  62         test();
  63     }
  64 
  65     void test() {
  66         setLabel("");
  67         setLabel(null);
  68         setLabel(getLabel());
  69 
  70         setFont(null);
  71         setFont(getFont());
  72 
  73         setBackground(null);
  74         setBackground(getBackground());
  75 
  76         setForeground(null);
  77         setForeground(getForeground());
  78 
  79         setEnabled(isEnabled());
  80     }
  81 }