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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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103
test/jdk/java/util/BitSet/StickySize.java Normal file
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/*
* Copyright (c) 2006, 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 6404711
* @summary Check capacity management
* @author Martin Buchholz
*/
import java.io.*;
import java.util.*;
public class StickySize {
static void equalClones(BitSet s, int expectedSize) {
equal(expectedSize, clone(s).size());
equal(expectedSize, serialClone(s).size());
equal(expectedSize, s.size());
equal(clone(s), serialClone(s));
}
private static void realMain(String[] args) {
BitSet s;
s = new BitSet(); // non-sticky
equal(s.size(), 64);
equalClones(s, 0);
s.set(3*64);
s.set(7*64);
equal(s.size(), 8*64);
equalClones(s, 8*64);
s.clear(7*64);
equal(s.size(), 8*64);
equalClones(s, 4*64);
s = new BitSet(8*64); // sticky
equalClones(s, 8*64);
s.set(3*64);
s.set(7*64);
equalClones(s, 8*64);
s.clear(7*64);
equalClones(s, 8*64);
equalClones(clone(s), 8*64);
equalClones(serialClone(s), 8*64);
s.set(17*64); // Expand beyond sticky size
equalClones(s, 18*64);
s.clear(17*64);
equalClones(s, 4*64);
}
static BitSet clone(BitSet s) {
return (BitSet) s.clone();
}
//--------------------- Infrastructure ---------------------------
static volatile int passed = 0, failed = 0;
static void pass() {passed++;}
static void fail() {failed++; Thread.dumpStack();}
static void fail(String msg) {System.out.println(msg); fail();}
static void unexpected(Throwable t) {failed++; t.printStackTrace();}
static void check(boolean cond) {if (cond) pass(); else fail();}
static void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
try {realMain(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
static byte[] serializedForm(Object obj) {
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
new ObjectOutputStream(baos).writeObject(obj);
return baos.toByteArray();
} catch (IOException e) { throw new RuntimeException(e); }}
static Object readObject(byte[] bytes)
throws IOException, ClassNotFoundException {
InputStream is = new ByteArrayInputStream(bytes);
return new ObjectInputStream(is).readObject();}
@SuppressWarnings("unchecked")
static <T> T serialClone(T obj) {
try { return (T) readObject(serializedForm(obj)); }
catch (Exception e) { throw new RuntimeException(e); }}
}