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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/FontClass/HelvLtOblTest.java Normal file
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/*
* Copyright (c) 2015, 2017, 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
* @key headful
* @bug 8064833
* @summary Test correct font is obtained via famil+style
* @run main HelvLtOblTest
*/
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.image.BufferedImage;
public class HelvLtOblTest extends JComponent {
static Font helvFont = null;
static int[] codes = { 0x23, 0x4a, 0x48, 0x3, 0x4a, 0x55, 0x42, 0x4d,
0x4a, 0x44, 0x3,
0x53, 0x46, 0x45, 0x3, 0x55, 0x46, 0x59, 0x55, };
static String str = "Big italic red text";
public static void main(String[] args) throws Exception {
String os = System.getProperty("os.name");
if (!os.startsWith("Mac")) {
return;
}
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
Font[] fonts = ge.getAllFonts();
for (int i=0; i<fonts.length; i++) {
if (fonts[i].getPSName().equals("Helvetica-LightOblique")) {
helvFont = fonts[i];
break;
}
}
if (helvFont == null) {
return;
}
final HelvLtOblTest test = new HelvLtOblTest();
SwingUtilities.invokeLater(() -> {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.add("Center", test);
f.pack();
f.setVisible(true);
});
test.compareImages();
}
public Dimension getPreferredSize() {
return new Dimension(400,400);
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D)g;
FontRenderContext frc = new FontRenderContext(null, true, true);
Font f = helvFont.deriveFont(Font.PLAIN, 40);
System.out.println("font = " +f.getFontName());
GlyphVector gv = f.createGlyphVector(frc, codes);
g.setFont(f);
g.setColor(Color.white);
g.fillRect(0,0,400,400);
g.setColor(Color.black);
g2.drawGlyphVector(gv, 5,200);
g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_ON);
g2.drawString(str, 5, 250);
}
void compareImages() {
BufferedImage bi0 = drawText(false);
BufferedImage bi1 = drawText(true);
compare(bi0, bi1);
}
BufferedImage drawText(boolean doGV) {
int w = 400;
int h = 50;
BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
g.setColor(Color.white);
g.fillRect(0,0,w,h);
g.setColor(Color.black);
Font f = helvFont.deriveFont(Font.PLAIN, 40);
g.setFont(f);
int x = 5;
int y = h - 10;
if (doGV) {
FontRenderContext frc = new FontRenderContext(null, true, true);
GlyphVector gv = f.createGlyphVector(frc, codes);
g.drawGlyphVector(gv, 5, y);
} else {
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_ON);
g.drawString(str, x, y);
}
return bi;
}
// Need to allow for minimal rounding error, so allow each component
// to differ by 1.
void compare(BufferedImage bi0, BufferedImage bi1) {
int wid = bi0.getWidth();
int hgt = bi0.getHeight();
for (int x=0; x<wid; x++) {
for (int y=0; y<hgt; y++) {
int rgb0 = bi0.getRGB(x, y);
int rgb1 = bi1.getRGB(x, y);
if (rgb0 == rgb1) continue;
int r0 = (rgb0 & 0xff0000) >> 16;
int r1 = (rgb1 & 0xff0000) >> 16;
int rdiff = r0-r1; if (rdiff<0) rdiff = -rdiff;
int g0 = (rgb0 & 0x00ff00) >> 8;
int g1 = (rgb1 & 0x00ff00) >> 8;
int gdiff = g0-g1; if (gdiff<0) gdiff = -gdiff;
int b0 = (rgb0 & 0x0000ff);
int b1 = (rgb1 & 0x0000ff);
int bdiff = b0-b1; if (bdiff<0) bdiff = -bdiff;
if (rdiff > 1 || gdiff > 1 || bdiff > 1) {
throw new RuntimeException(
"Images differ at x=" + x + " y="+ y + " " +
Integer.toHexString(rgb0) + " vs " +
Integer.toHexString(rgb1));
}
}
}
}
}