1 /*
   2  * Copyright (c) 2009, 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 /* @test
  25    @bug 6824600
  26    @summary OOM occurs when setLookAndFeel() is executed in Windows L&F(XP style)
  27    @author Pavel Porvatov
  28    @run main Test6824600
  29 */
  30 
  31 import com.sun.java.swing.plaf.windows.DesktopProperty;
  32 
  33 import java.awt.*;
  34 
  35 public class Test6824600 {
  36     public static void main(String[] args) throws Exception {
  37         Toolkit toolkit = Toolkit.getDefaultToolkit();
  38 
  39         HackedDesktopProperty desktopProperty = new HackedDesktopProperty("Button.background", null);
  40 
  41         // Register listener in toolkit
  42         desktopProperty.getValueFromDesktop();
  43 
  44         int length = toolkit.getPropertyChangeListeners().length;
  45 
  46         // Make several invocations
  47         desktopProperty.getValueFromDesktop();
  48         desktopProperty.getValueFromDesktop();
  49 
  50         desktopProperty.invalidate();
  51 
  52         desktopProperty.getValueFromDesktop();
  53         desktopProperty.getValueFromDesktop();
  54 
  55         if (length != toolkit.getPropertyChangeListeners().length) {
  56             throw new RuntimeException("New listeners were added into Toolkit");
  57         }
  58     }
  59 
  60     public static class HackedDesktopProperty extends DesktopProperty {
  61         public HackedDesktopProperty(String key, Object fallback) {
  62             super(key, fallback);
  63         }
  64 
  65         // Publish the method
  66         public Object getValueFromDesktop() {
  67             return super.getValueFromDesktop();
  68         }
  69     }
  70 }