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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/Bug4851640.java Normal file
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/*
* Copyright (c) 2003, 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 4851640
* @summary Make sure not to set UNSET fields to COMPUTED after time calculation.
*/
import java.util.GregorianCalendar;
import static java.util.Calendar.*;
public class Bug4851640 {
public static void main(String args[]) {
GregorianCalendar cal = new GregorianCalendar();
cal.clear();
cal.set(YEAR, 2003);
long t = cal.getTime().getTime();
// For the time calculation, the MONTH and DAY_OF_MONTH fields
// (with the default values) have been used for determining
// the date. However, both the MONTH and DAY_OF_MONTH fields
// should be kept UNSET after the time calculation.
if (cal.isSet(MONTH) || cal.isSet(DAY_OF_MONTH)) {
throw new RuntimeException("After getTime(): MONTH field=" + cal.isSet(MONTH)
+ ", DAY_OF_MONTH field=" + cal.isSet(DAY_OF_MONTH));
}
// After calling get() for any field, all field values are
// recalculated and their field states are set to
// COMPUTED. isSet() must return true.
int y = cal.get(YEAR);
if (!(cal.isSet(MONTH) && cal.isSet(DAY_OF_MONTH))) {
throw new RuntimeException("After get(): MONTH field=" + cal.isSet(MONTH)
+ ", DAY_OF_MONTH field=" + cal.isSet(DAY_OF_MONTH));
}
}
}