1 /*
   2  * Copyright (c) 2009, 2010, 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 6919629
  28    @summary Tests that components with Nimbus.Overrides are GC'ed properly
  29    @author Peter Zhelezniakov
  30    @run main Test6919629
  31 */
  32 
  33 import java.awt.Color;
  34 import java.lang.ref.WeakReference;
  35 import javax.swing.*;
  36 import javax.swing.plaf.nimbus.NimbusLookAndFeel;
  37 
  38 public class Test6919629
  39 {
  40     JFrame f;
  41     WeakReference<JLabel> ref;
  42 
  43     public static void main(String[] args) throws Exception {
  44         UIManager.setLookAndFeel(new NimbusLookAndFeel());
  45         Test6919629 t = new Test6919629();
  46         t.test();
  47         System.gc();
  48         t.check();
  49     }
  50 
  51     void test() throws Exception {
  52         SwingUtilities.invokeAndWait(new Runnable() {
  53             public void run() {
  54                 UIDefaults d = new UIDefaults();
  55                 d.put("Label.textForeground", Color.MAGENTA);
  56 
  57                 JLabel l = new JLabel();
  58                 ref = new WeakReference<JLabel>(l);
  59                 l.putClientProperty("Nimbus.Overrides", d);
  60 
  61                 f = new JFrame();
  62                 f.getContentPane().add(l);
  63                 f.pack();
  64                 f.setVisible(true);
  65             }
  66         });
  67         Thread.sleep(2000);
  68 
  69         SwingUtilities.invokeAndWait(new Runnable() {
  70             public void run() {
  71                 f.getContentPane().removeAll();
  72                 f.setVisible(false);
  73                 f.dispose();
  74             }
  75         });
  76         Thread.sleep(2000);
  77     }
  78 
  79     void check() {
  80         if (ref.get() != null) {
  81             throw new RuntimeException("Failed: an unused component wasn't collected");
  82         }
  83     }
  84 }