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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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109
test/jdk/java/io/PrintStream/InheritEncodingTest.java Normal file
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/*
* Copyright (c) 2021, 2026, 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.
*/
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* @test
* @bug 8276970
* @summary Test to verify the charset in PrintStream is inherited
* in the OutputStreamWriter/PrintWriter
* @run junit InheritEncodingTest
*/
public class InheritEncodingTest {
private static final String testString = "\u00e9\u3042"; // "éあ"
public static Charset[] encodings() {
return new Charset[]{
StandardCharsets.ISO_8859_1,
StandardCharsets.US_ASCII,
StandardCharsets.UTF_8,
StandardCharsets.UTF_16,
StandardCharsets.UTF_16BE,
StandardCharsets.UTF_16LE
};
}
@ParameterizedTest
@MethodSource("encodings")
public void testOutputStreamWriter(Charset stdCharset) throws IOException {
var ba = new ByteArrayOutputStream();
var ps = new PrintStream(ba, true, stdCharset);
var expected = new String(testString.getBytes(stdCharset), stdCharset);
// tests OutputStreamWriter's encoding explicitly
var osw = new OutputStreamWriter(ps);
assertEquals(stdCharset, Charset.forName(osw.getEncoding()));
// tests roundtrip result
osw.write(testString);
osw.flush();
var result = ba.toString(stdCharset);
assertEquals(expected, result);
}
@ParameterizedTest
@MethodSource("encodings")
public void testPrintWriter(Charset stdCharset) throws IOException {
var ba = new ByteArrayOutputStream();
var ps = new PrintStream(ba, true, stdCharset);
var expected = new String(testString.getBytes(stdCharset), stdCharset);
// tests roundtrip result
var pw = new PrintWriter(ps);
pw.write(testString);
pw.flush();
var result = ba.toString(stdCharset);
assertEquals(expected, result);
}
@ParameterizedTest
@MethodSource("encodings")
public void testPrintStream(Charset stdCharset) throws IOException {
var ba = new ByteArrayOutputStream();
var ps = new PrintStream(ba, true, stdCharset);
var expected = new String(testString.getBytes(stdCharset), stdCharset);
// tests PrintStream's charset explicitly
var psWrapper = new PrintStream(ps);
assertEquals(stdCharset, psWrapper.charset());
// tests roundtrip result
psWrapper.print(testString);
psWrapper.flush();
var result = ba.toString(stdCharset);
assertEquals(expected, result);
}
}