1 /*

     2  * Copyright 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /* @test

    25    @bug 6481955

    26    @summary Path length less than MAX_PATH (260) works on Windows

    27  */

    28 

    29 import java.io.*;

    30 

    31 public 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 }