6481955: Uncanonicalized absolute filepath with length 248-260 no longer works (win)
Summary: Uncanonicalized absolute filepath with length 248-260 no longer works (win)
Reviewed-by: alanb
/*
* Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
/* @test
@bug 6481955
@summary Path length less than MAX_PATH (260) works on Windows
*/
import java.io.*;
public class MaxPath {
public static void main(String[] args) throws Exception {
String osName = System.getProperty("os.name");
if (!osName.startsWith("Windows")) {
return;
}
int MAX_PATH = 260;
String dir = new File(".").getAbsolutePath() + "\\";
String padding = "1234567890123456789012345678901234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890012345678900123456789001234567890";
for (int i = 240 - dir.length(); i < MAX_PATH - dir.length(); i++) {
String longname = dir + padding.substring(0, i);
try {
File f = new File(longname);
if (f.createNewFile()) {
if (!f.exists() || !f.canRead()) {
throw new RuntimeException("Failed at length: " + longname.length());
}
f.delete();
}
} catch (IOException e) {
System.out.println("Failed at length: " + longname.length());
throw e;
}
}
}
}