1 /*
   2  * Copyright (c) 2013, 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  * @bug 8013563 8028486
  27  * @summary Tests that windows are removed from windows list
  28  * @library /javax/swing/regtesthelpers
  29  * @build Util
  30  * @run main/othervm -Xms32M -Xmx32M WindowsLeak
  31 */
  32 
  33 import java.awt.Frame;
  34 import java.awt.Robot;
  35 import java.awt.Window;
  36 import java.lang.ref.WeakReference;
  37 import java.util.Vector;
  38 
  39 import sun.awt.AppContext;
  40 import sun.java2d.Disposer;
  41 
  42 public class WindowsLeak {
  43 
  44     private static volatile boolean disposerPhantomComplete;
  45 
  46     public static void main(String[] args) throws Exception {
  47         Robot r = new Robot();
  48         for (int i = 0; i < 100; i++) {
  49             Frame f = new Frame();
  50             f.pack();
  51             f.dispose();
  52         }
  53         r.waitForIdle();
  54 
  55         Disposer.addRecord(new Object(), () -> disposerPhantomComplete = true);
  56 
  57         while (!disposerPhantomComplete) {
  58             Util.generateOOME();
  59         }
  60 
  61         Vector<WeakReference<Window>> windowList =
  62                         (Vector<WeakReference<Window>>) AppContext.getAppContext().get(Window.class);
  63 
  64         if (windowList != null && !windowList.isEmpty()) {
  65             throw new RuntimeException("Test FAILED: Window list is not empty: " + windowList.size());
  66         }
  67 
  68         System.out.println("Test PASSED");
  69     }
  70 }