1 /*
   2  * Copyright (c) 2002, 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  * @test
  26  * @key headful
  27  * @bug 4177735
  28  * @summary Tests that JColorChooser leaves no threads when disposed
  29  * @author Shannon Hickey
  30  */
  31 
  32 import java.awt.Point;
  33 import javax.swing.JColorChooser;
  34 import javax.swing.JDialog;
  35 import javax.swing.SwingUtilities;
  36 import javax.swing.colorchooser.AbstractColorChooserPanel;
  37 
  38 public class Test4177735 implements Runnable {
  39     private static final long DELAY = 1000L;
  40 
  41     public static void main(String[] args) throws Exception {
  42         JColorChooser chooser = new JColorChooser();
  43         AbstractColorChooserPanel[] panels = chooser.getChooserPanels();
  44         chooser.setChooserPanels(new AbstractColorChooserPanel[] { panels[1] });
  45 
  46         JDialog dialog = show(chooser);
  47         pause(DELAY);
  48 
  49         dialog.dispose();
  50         pause(DELAY);
  51 
  52         Test4177735 test = new Test4177735();
  53         SwingUtilities.invokeAndWait(test);
  54         if (test.count != 0) {
  55             throw new Error("JColorChooser leaves " + test.count + " threads running");
  56         }
  57     }
  58 
  59     static JDialog show(JColorChooser chooser) {
  60         JDialog dialog = JColorChooser.createDialog(null, null, false, chooser, null, null);
  61         dialog.setVisible(true);
  62         // block till displayed
  63         Point point = null;
  64         while (point == null) {
  65             try {
  66                 point = dialog.getLocationOnScreen();
  67             }
  68             catch (IllegalStateException exception) {
  69                 pause(DELAY);
  70             }
  71         }
  72         return dialog;
  73     }
  74 
  75     private static void pause(long delay) {
  76         try {
  77             Thread.sleep(delay);
  78         }
  79         catch (InterruptedException exception) {
  80         }
  81     }
  82 
  83     private int count;
  84 
  85     public void run() {
  86         ThreadGroup group = Thread.currentThread().getThreadGroup();
  87         Thread[] threads = new Thread[group.activeCount()];
  88         int count = group.enumerate(threads, false);
  89         for (int i = 0; i < count; i++) {
  90             String name = threads[i].getName();
  91             if ("SyntheticImageGenerator".equals(name)) { // NON-NLS: thread name
  92                 this.count++;
  93             }
  94         }
  95     }
  96 }