1/*
2 * Copyright (c) 2008, 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/* @test
25   @bug 6481955
26   @summary Path length less than MAX_PATH (260) works on Windows
27 */
28
29import java.io.*;
30
31public class MaxPath {
32    public static void main(String[] args) throws Exception {
33        String osName = System.getProperty("os.name");
34        if (!osName.startsWith("Windows")) {
35            return;
36        }
37        int MAX_PATH = 260;
38        String dir = new File(".").getAbsolutePath() + "\\";
39        String padding = "1234567890123456789012345678901234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890";
40        for (int i = 240 - dir.length(); i < MAX_PATH - dir.length(); i++) {
41            String longname = dir + padding.substring(0, i);
42            try {
43                File f = new File(longname);
44                if (f.createNewFile()) {
45                    if (!f.exists() || !f.canRead()) {
46                        throw new RuntimeException("Failed at length: " + longname.length());
47                    }
48                    f.delete();
49                }
50            } catch (IOException e) {
51                System.out.println("Failed at length: " + longname.length());
52                throw e;
53            }
54        }
55    }
56}
57