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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/jdk/java/lang/String/concat/CompactStringsInitialCoder.java Normal file
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/*
* Copyright (c) 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
* @summary StringConcatFactory MH_INLINE_SIZED_EXACT strategy does not work with -XX:-CompactStrings
* @bug 8148869
*
* @compile -XDstringConcat=indy CompactStringsInitialCoder.java
* @run main/othervm -Xverify:all -XX:+CompactStrings CompactStringsInitialCoder
*
* @compile -XDstringConcat=indyWithConstants CompactStringsInitialCoder.java
* @run main/othervm -Xverify:all -XX:+CompactStrings CompactStringsInitialCoder
*
* @compile -XDstringConcat=indy CompactStringsInitialCoder.java
* @run main/othervm -Xverify:all -XX:-CompactStrings CompactStringsInitialCoder
*
* @compile -XDstringConcat=indyWithConstants CompactStringsInitialCoder.java
* @run main/othervm -Xverify:all -XX:-CompactStrings CompactStringsInitialCoder
*/
import java.lang.StringBuilder;
public class CompactStringsInitialCoder {
static String strEmpty = "";
static String strLatin1 = "\u0042";
static String strUTF16 = "\u4242";
static char charLatin1 = '\u0042';
static char charUTF16 = '\u4242';
public static void main(String[] args) throws Exception {
test("\u0042", "" + '\u0042');
test("\u4242", "" + '\u4242');
test("\u0042", "" + charLatin1);
test("\u4242", "" + charUTF16);
test("\u0042", strEmpty + '\u0042');
test("\u4242", strEmpty + '\u4242');
test("\u0042\u0042", strLatin1 + '\u0042');
test("\u0042\u4242", strLatin1 + '\u4242');
test("\u4242\u0042", strUTF16 + '\u0042');
test("\u4242\u4242", strUTF16 + '\u4242');
test("\u0042\u0042", "\u0042" + charLatin1);
test("\u0042\u4242", "\u0042" + charUTF16);
test("\u4242\u0042", "\u4242" + charLatin1);
test("\u4242\u4242", "\u4242" + charUTF16);
test("\u0042\u0042", "" + charLatin1 + charLatin1);
test("\u0042\u4242", "" + charLatin1 + charUTF16);
test("\u4242\u0042", "" + charUTF16 + charLatin1);
test("\u4242\u4242", "" + charUTF16 + charUTF16);
}
public static void test(String expected, String actual) {
if (!expected.equals(actual)) {
StringBuilder sb = new StringBuilder();
sb.append("Expected = ");
sb.append(expected);
sb.append(", actual = ");
sb.append(actual);
throw new IllegalStateException(sb.toString());
}
}
}