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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/awt/font/LineBreakMeasurer/KhmerLineBreakTest.java Normal file
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/*
* Copyright Amazon.com Inc. 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 8361381
* @summary GlyphLayout behavior differs on JDK 11+ compared to JDK 8
*/
import java.awt.*;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import java.text.BreakIterator;
import java.util.Locale;
public class KhmerLineBreakTest {
static String khmer = "បានស្នើសុំនៅតែត្រូវបានបដិសេធ";
/*
This is part of the output we get from `ExtendedTextSourceLabel::createCharinfo()`
when running with `-Dsun.java2d.debugfonts=true`. It's a listing of the 28 code points
of the `khmer` string defined above and displays their x-position during rendering as
well as their advance. Code points with zero advance belong to the glyph cluster which
is started by the first preceding code point with a non-zero advance. There should be no
breaks at characters with zero advance, because this would break a glyph cluster.
0 ch: 1794 x: 0.0 xa: 68.115234
1 ch: 17b6 x: 68.115234 xa: 0.0
2 ch: 1793 x: 68.115234 xa: 45.410156
3 ch: 179f x: 113.52539 xa: 90.82031
4 ch: 17d2 x: 204.3457 xa: 0.0
5 ch: 1793 x: 204.3457 xa: 0.0
6 ch: 17be x: 204.3457 xa: 0.0
7 ch: 179f x: 204.3457 xa: 68.115234
8 ch: 17bb x: 272.46094 xa: 0.0
9 ch: 17c6 x: 272.46094 xa: 0.0
10 ch: 1793 x: 272.46094 xa: 90.82031
11 ch: 17c5 x: 363.28125 xa: 0.0
12 ch: 178f x: 363.28125 xa: 68.115234
13 ch: 17c2 x: 431.39648 xa: 0.0
14 ch: 178f x: 431.39648 xa: 68.115234
15 ch: 17d2 x: 499.51172 xa: 0.0
16 ch: 179a x: 499.51172 xa: 0.0
17 ch: 17bc x: 499.51172 xa: 0.0
18 ch: 179c x: 499.51172 xa: 22.705078
19 ch: 1794 x: 522.2168 xa: 68.115234
20 ch: 17b6 x: 590.33203 xa: 0.0
21 ch: 1793 x: 590.33203 xa: 45.410156
22 ch: 1794 x: 635.7422 xa: 45.410156
23 ch: 178a x: 681.15234 xa: 45.410156
24 ch: 17b7 x: 726.5625 xa: 0.0
25 ch: 179f x: 726.5625 xa: 90.82031
26 ch: 17c1 x: 817.3828 xa: 0.0
27 ch: 1792 x: 817.3828 xa: 45.410156
*/
static boolean[] possibleBreak = new boolean[]
{ true, false, true, true, false, false, false, true, false, false,
true, false, true, false, true, false, false, false, true, true,
false, true, true, true, false, true, false, true, true /* */ };
static Locale locale = new Locale.Builder().setLanguage("km").setRegion("KH").build();
static BreakIterator breakIterator = BreakIterator.getLineInstance(locale);
static FontRenderContext frc = new FontRenderContext(null, true, true);
public static void main(String[] args) {
Font[] allFonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
for (int i=0; i < allFonts.length; i++) {
if (allFonts[i].canDisplayUpTo(khmer) == -1) {
Font font = allFonts[i].deriveFont(Font.PLAIN, 60f);
System.out.println("Trying font: " + font.getFontName());
AttributedString attrStr = new AttributedString(khmer);
attrStr.addAttribute(TextAttribute.FONT, font);
AttributedCharacterIterator it = attrStr.getIterator();
for (int width = 200; width < 400; width += 10) {
LineBreakMeasurer measurer = new LineBreakMeasurer(it, breakIterator, frc);
System.out.print(width + " : ");
while (measurer.getPosition() < it.getEndIndex()) {
int nextOffset = measurer.nextOffset(width);
System.out.print(nextOffset + " ");
if (!possibleBreak[nextOffset]) {
System.out.println();
throw new RuntimeException("Invalid break at offset " + nextOffset + " (width = " + width + " font = " + font.getFontName() + ")");
}
measurer.setPosition(nextOffset);
}
System.out.println();
}
System.out.println("OK");
}
}
}
}