1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   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  *
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  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
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  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    @modules java.desktop/com.sun.java.swing.plaf.windows
  29    @run main Test6824600
  30 */
  31 
  32 import com.sun.java.swing.plaf.windows.DesktopProperty;
  33 
  34 import java.awt.*;
  35 
  36 public class Test6824600 {
  37     public static void main(String[] args) throws Exception {
  38         Toolkit toolkit = Toolkit.getDefaultToolkit();
  39 
  40         HackedDesktopProperty desktopProperty = new HackedDesktopProperty("Button.background", null);
  41 
  42         // Register listener in toolkit
  43         desktopProperty.getValueFromDesktop();
  44 
  45         int length = toolkit.getPropertyChangeListeners().length;
  46 
  47         // Make several invocations
  48         desktopProperty.getValueFromDesktop();
  49         desktopProperty.getValueFromDesktop();
  50 
  51         desktopProperty.invalidate();
  52 
  53         desktopProperty.getValueFromDesktop();
  54         desktopProperty.getValueFromDesktop();
  55 
  56         if (length != toolkit.getPropertyChangeListeners().length) {
  57             throw new RuntimeException("New listeners were added into Toolkit");
  58         }
  59     }
  60 
  61     public static class HackedDesktopProperty extends DesktopProperty {
  62         public HackedDesktopProperty(String key, Object fallback) {
  63             super(key, fallback);
  64         }
  65 
  66         // Publish the method
  67         public Object getValueFromDesktop() {
  68             return super.getValueFromDesktop();
  69         }
  70     }
  71 }