1/*
2 * Copyright (c) 2010, 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 @(#)bug6520101
26 * @key headful
27 * @bug 6520101
28 * @summary JFileChooser throws OOM in 1.4.2, 5.0u4 and 1.6.0
29 * @author Praveen Gupta
30 * @run main/othervm/timeout=600 -Xmx8m -verify bug6520101
31*/
32
33import javax.swing.*;
34import java.awt.event.ActionEvent;
35import java.awt.event.ActionListener;
36
37public class bug6520101 implements Runnable {
38
39    private static final int ATTEMPTS = 500;
40    private static final int INTERVAL = 100;
41
42    private static final boolean ALWAYS_NEW_INSTANCE = false;
43    private static final boolean DO_GC_EACH_INTERVAL = false;
44    private static final boolean UPDATE_UI_EACH_INTERVAL = true;
45    private static final boolean AUTO_CLOSE_DIALOG = true;
46
47    private static JFileChooser CHOOSER;
48
49    public static void main(String[] args) throws Exception {
50        UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
51
52        for (int i = 0; i < ATTEMPTS; i++) {
53            doAttempt();
54        }
55
56        System.out.println("Test passed successfully");
57    }
58
59    private static void doAttempt() throws InterruptedException {
60        if (ALWAYS_NEW_INSTANCE || (CHOOSER == null))
61            CHOOSER = new JFileChooser(".");
62
63        if (UPDATE_UI_EACH_INTERVAL) {
64            CHOOSER.updateUI();
65        }
66
67        if (AUTO_CLOSE_DIALOG) {
68            Thread t = new Thread(new bug6520101(CHOOSER));
69            t.start();
70            CHOOSER.showOpenDialog(null);
71            t.join();
72        } else {
73            CHOOSER.showOpenDialog(null);
74        }
75
76        if (DO_GC_EACH_INTERVAL) {
77            System.gc();
78        }
79    }
80
81    private final JFileChooser chooser;
82
83    bug6520101(JFileChooser chooser) {
84        this.chooser = chooser;
85    }
86
87    public void run() {
88        while (!this.chooser.isShowing()) {
89            try {
90                Thread.sleep(30);
91            } catch (InterruptedException exception) {
92                exception.printStackTrace();
93            }
94        }
95
96        Timer timer = new Timer(INTERVAL, new ActionListener() {
97            public void actionPerformed(ActionEvent e) {
98                chooser.cancelSelection();
99            }
100        });
101
102        timer.setRepeats(false);
103        timer.start();
104    }
105}
106