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 import java.awt.EventQueue;
  25 import java.awt.Frame;
  26 import java.awt.Graphics;
  27 import java.awt.Label;
  28 
  29 /**
  30  * @test
  31  * @key headful
  32  * @bug 7090424
  33  * @author Sergey Bylokhov
  34  */
  35 public final class LabelRepaint extends Label {
  36 
  37     public static void main(final String[] args) {
  38         for (int i = 0; i < 10; ++i) {
  39             final Frame frame = new Frame();
  40             frame.setSize(300, 300);
  41             frame.setLocationRelativeTo(null);
  42             LabelRepaint label = new LabelRepaint();
  43             frame.add(label);
  44             frame.setVisible(true);
  45             sleep();
  46             label.test();
  47             frame.dispose();
  48         }
  49     }
  50 
  51     private static void sleep() {
  52         try {
  53             Thread.sleep(2000);
  54         } catch (InterruptedException ignored) {
  55         }
  56     }
  57 
  58     @Override
  59     public void paint(final Graphics g) {
  60         super.paint(g);
  61         if (!EventQueue.isDispatchThread()) {
  62             throw new RuntimeException("Wrong thread");
  63         }
  64         test();
  65     }
  66 
  67     void test() {
  68         setAlignment(getAlignment());
  69 
  70         setText("");
  71         setText(null);
  72         setText(getText());
  73 
  74         setFont(null);
  75         setFont(getFont());
  76 
  77         setBackground(null);
  78         setBackground(getBackground());
  79 
  80         setForeground(null);
  81         setForeground(getForeground());
  82 
  83         setEnabled(isEnabled());
  84     }
  85 }