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
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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 
main(String[] args)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 }
71