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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
commit 0a580b313d
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test/jdk/java/util/concurrent/LinkedTransferQueue/SubclassTest.java Normal file
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/*
* Copyright (c) 2024, 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 8323659
* @summary Ensures that the implementation of LTQ add and put methods does
* not call overridable offer. This test specifically asserts implementation
* details of LTQ. It's not that such impl details cannot change, just that
* such a change should be deliberately done with suitable consideration
* to compatibility.
* @run testng SubclassTest
*/
import java.util.concurrent.LinkedTransferQueue;
import java.util.concurrent.TimeUnit;
import org.testng.annotations.Test;
import static org.testng.Assert.assertEquals;
@Test
public class SubclassTest {
public void testPut() {
var queue = new TestLinkedTransferQueue();
queue.put(new Object());
assertEquals(queue.size(), 1);
}
public void testAdd() {
var queue = new TestLinkedTransferQueue();
queue.add(new Object());
assertEquals(queue.size(), 1);
}
public void testTimedOffer() {
var queue = new TestLinkedTransferQueue();
queue.offer(new Object(), 60, TimeUnit.SECONDS);
assertEquals(queue.size(), 1);
}
static class TestLinkedTransferQueue extends LinkedTransferQueue<Object> {
@Override
public boolean offer(Object obj) {
return false; // simulate fails to add the given obj
}
}
}