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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/util/Calendar/Bug6902861.java Normal file
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/*
* Copyright (c) 2013, 2016, 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 6902861
* @summary Test for a workaround when WEEK_OF_YEAR and YEAR are out of sync.
* @modules jdk.localedata
*/
import java.util.*;
import static java.util.GregorianCalendar.*;
public class Bug6902861 {
static int errors = 0;
public static void main(String [] args) {
Locale loc = Locale.getDefault();
try {
Locale.setDefault(Locale.GERMANY);
test(2010, JANUARY, 1, +1, 1);
test(2010, JANUARY, 1, +2, 2);
test(2010, JANUARY, 1, -1, 52);
test(2010, JANUARY, 1, -2, 51);
test(2008, DECEMBER, 31, +1, 1);
test(2008, DECEMBER, 31, +2, 2);
test(2008, DECEMBER, 31, -1, 52);
test(2008, DECEMBER, 31, -2, 51);
if (errors > 0) {
throw new RuntimeException("Failed");
}
} finally {
Locale.setDefault(loc);
}
}
static void test(int year, int month, int dayOfMonth, int amount, int expected) {
Calendar calendar = new GregorianCalendar(year, month, dayOfMonth);
int week = calendar.get(WEEK_OF_YEAR); // fix the date
calendar.roll(WEEK_OF_YEAR, amount);
int got = calendar.get(WEEK_OF_YEAR);
int y = calendar.get(YEAR);
if (got != expected || y != year) {
String date = String.format("%04d-%02d-%02d", year, month+1, dayOfMonth);
System.err.printf("%s: roll %+d: got: %d,%2d; expected: %d,%2d%n",
date, amount, y, got, year, expected);
errors++;
}
}
}