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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/io/File/TimeZoneLastModified.java Normal file
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/*
* Copyright (c) 2017, 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 6212869 8347841
* @summary Determine if lastModified() works after TimeZone.setDefault()
* @run main/othervm TimeZoneLastModified
*/
import java.io.File;
import java.time.ZoneId;
import java.util.TimeZone;
public class TimeZoneLastModified {
// Tue, 04 Jun 2002 13:56:50.002 GMT
private static final long TIME = 1023199010002L;
public static void main(String[] args) throws Throwable {
int failures = test(null);
for (String timeZoneID : TimeZone.getAvailableIDs()) {
if (ZoneId.SHORT_IDS.containsKey(timeZoneID)) {
continue;
}
failures += test(timeZoneID);
}
if (failures != 0) {
throw new RuntimeException("TimeZoneLastModified failed");
}
System.out.println("TimeZoneLastModified passed");
}
private static int test(String timeZoneID) throws Throwable {
File f = new File("test-timezone.txt");
int failures = 0;
try {
f.createNewFile();
if (timeZoneID != null) {
TimeZone.setDefault(TimeZone.getTimeZone(timeZoneID));
}
boolean succeeded = f.setLastModified(TIME);
if (!succeeded) {
System.err.format
("Setting time to %d failed for time zone %s%n",
TIME, timeZoneID);
failures++;
}
long time = f.lastModified();
if (Math.abs(time - TIME) > 999) { // account for second precision
System.err.format
("Wrong modification time (ms): expected %d, obtained %d%n",
TIME, time);
failures++;
}
} finally {
f.delete();
}
return failures;
}
}