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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
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test/jdk/java/nio/file/DirectoryStream/DriveLetter.java Normal file
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/*
* Copyright (c) 2008, 2025, Oracle and/or its affiliates. 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 6808647
* @summary Checks that a DirectoryStream's iterator returns the expected
* path when opening a directory by specifying only the drive letter.
* @requires (os.family == "windows")
* @library ..
*/
import java.nio.file.*;
import java.io.File;
import java.io.IOException;
public class DriveLetter {
public static void main(String[] args) throws IOException {
String here = System.getProperty("user.dir");
if (here.length() < 2 || here.charAt(1) != ':')
throw new RuntimeException("Unable to determine drive letter");
// create temporary file in current directory
File tempFile = File.createTempFile("foo", "tmp", new File(here));
try {
// we should expect C:foo.tmp to be returned by iterator
String drive = here.substring(0, 2);
Path expected = Paths.get(drive).resolve(tempFile.getName());
boolean found = false;
Path dir = Paths.get(drive);
try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir)) {
for (Path file : stream) {
if (file.equals(expected)) {
found = true;
break;
}
}
}
if (!found)
throw new RuntimeException("Temporary file not found???");
} finally {
tempFile.delete();
}
}
}