1 /*
   2  * Copyright (c) 2015, 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.Checkbox;
  25 import java.awt.CheckboxGroup;
  26 import java.awt.Frame;
  27 import java.awt.GridBagLayout;
  28 import java.awt.Robot;
  29 
  30 /**
  31  * @test
  32  * @key headful
  33  * @bug 8074500
  34  * @summary Checkbox.setState() call should not post ItemEvent
  35  * @author Sergey Bylokhov
  36  */
  37 public final class SetStateExcessEvent {
  38 
  39     private static boolean failed;
  40 
  41     public static void main(final String[] args) throws Exception {
  42         final Robot robot = new Robot();
  43         final CheckboxGroup group = new CheckboxGroup();
  44         final Checkbox[] cbs = {new Checkbox("checkbox1", true, group),
  45                                 new Checkbox("checkbox2", false, group),
  46                                 new Checkbox("checkbox3", true, group),
  47 
  48                                 new Checkbox("checkbox4", true),
  49                                 new Checkbox("checkbox5", false),
  50                                 new Checkbox("checkbox6", true)};
  51         final Frame frame = new Frame();
  52         frame.setLayout(new GridBagLayout());
  53         try {
  54             for (final Checkbox cb : cbs) {
  55                 cb.addItemListener(e -> {
  56                     failed = true;
  57                 });
  58             }
  59             for (final Checkbox cb : cbs) {
  60                 frame.add(cb);
  61             }
  62             frame.pack();
  63 
  64             for (final Checkbox cb : cbs) {
  65                 cb.setState(!cb.getState());
  66             }
  67 
  68             for (final Checkbox cb : cbs) {
  69                 group.setSelectedCheckbox(cb);
  70             }
  71             robot.waitForIdle();
  72         } finally {
  73             frame.dispose();
  74         }
  75         if (failed) {
  76             throw new RuntimeException("Listener should not be called");
  77         }
  78         System.out.println("Test passed");
  79     }
  80 }