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 /*
  25  * @test
  26  * @bug 6795356
  27  * @summary Leak caused by javax.swing.UIDefaults.ProxyLazyValue.acc
  28  * @author Alexander Potochkin
  29  * @library ../../regtesthelpers
  30  * @build Util
  31  * @run main bug6795356
  32  */
  33 
  34 import java.lang.ref.WeakReference;
  35 import java.security.ProtectionDomain;
  36 import java.security.AccessController;
  37 import java.security.PrivilegedAction;
  38 import java.security.AccessControlContext;
  39 import java.util.LinkedList;
  40 import java.util.List;
  41 import javax.swing.*;
  42 
  43 public class bug6795356 {
  44     volatile static WeakReference<ProtectionDomain> weakRef;
  45 
  46     public static void main(String[] args) throws Exception {
  47 
  48         ProtectionDomain domain = new ProtectionDomain(null, null);
  49 
  50         AccessController.doPrivileged(new PrivilegedAction<Object>() {
  51             public Object run() {
  52 
  53                 // this initialize ProxyLazyValues
  54                 UIManager.getLookAndFeel();
  55 
  56                 return null;
  57             }
  58         }, new AccessControlContext(new ProtectionDomain[]{domain}));
  59 
  60         weakRef = new WeakReference<ProtectionDomain>(domain);
  61         domain = null;
  62 
  63         Util.generateOOME();
  64 
  65         if (weakRef.get() != null) {
  66             throw new RuntimeException("Memory leak found!");
  67         }
  68         System.out.println("Test passed");
  69     }
  70 }