IsLightweightCrash.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2007, 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  @key headful
27  @bug 6255653
28  @summary REGRESSION: Override isLightweight() causes access violation in awt.dll
29  @author Andrei Dmitriev: area=awt-component
30  @run main IsLightweightCrash
31*/
32
33/*
34 * The test may not crash for several times so iteratively continue up to some limit.
35 */
36
37import java.awt.*;
38
39public class IsLightweightCrash {
40    public static int ITERATIONS = 20;
41
42    public static void main(String []s)
43    {
44        for (int i = 0; i < ITERATIONS; i++){
45            showFrame(i);
46        }
47    }
48
49    private static void showFrame(int i){
50        System.out.println("iteration = "+i);
51        Frame f = new Frame();
52        f.add(new AHeavyweightComponent());
53        f.setVisible(true);
54        f.setVisible(false);
55    }
56}
57
58class AHeavyweightComponent extends Component {
59    public boolean isLightweight() { return false; }
60}
61