1 /*
   2  * Copyright (c) 2014, 2017, 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.util.concurrent.CountDownLatch;
  25 import javax.swing.JComboBox;
  26 import javax.swing.JFrame;
  27 import javax.swing.SwingUtilities;
  28 
  29 /**
  30  * @test
  31  * @key headful
  32  * @bug 8019180
  33  * @summary Tests that combobox works if it is used as action listener
  34  * @author Sergey Malenkov
  35  */
  36 
  37 public class Test8019180 implements Runnable {
  38     private static final CountDownLatch LATCH = new CountDownLatch(1);
  39     private static final String[] ITEMS = {"First", "Second", "Third", "Fourth"};
  40 
  41     public static void main(String[] args) throws InterruptedException {
  42         SwingUtilities.invokeLater(new Test8019180());
  43         LATCH.await();
  44     }
  45 
  46     private JComboBox<String> test;
  47 
  48     @Override
  49     public void run() {
  50         if (this.test == null) {
  51             this.test = new JComboBox<>(ITEMS);
  52             this.test.addActionListener(this.test);
  53             JFrame frame = new JFrame();
  54             frame.add(test);
  55             frame.pack();
  56             frame.setVisible(true);
  57             SwingUtilities.invokeLater(this);
  58         } else {
  59             int index = this.test.getSelectedIndex();
  60             this.test.setSelectedIndex(1 + index);
  61             if (0 > this.test.getSelectedIndex()) {
  62                 System.err.println("ERROR: no selection");
  63                 System.exit(8019180);
  64             }
  65             SwingUtilities.getWindowAncestor(this.test).dispose();
  66             LATCH.countDown();
  67         }
  68     }
  69 }