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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
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test/jdk/java/awt/Graphics/CopyScaledArea/CopyScaledAreaTest.java Normal file
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/*
* Copyright (c) 2015, 2018, 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.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.VolatileImage;
import static sun.awt.OSInfo.*;
/**
* @test
* @key headful
* @bug 8069348 8198613
* @summary SunGraphics2D.copyArea() does not properly work for scaled graphics
* @modules java.desktop/sun.awt
* @run main/othervm -Dsun.java2d.uiScale=2 CopyScaledAreaTest
* @run main/othervm -Dsun.java2d.d3d=true -Dsun.java2d.uiScale=2 CopyScaledAreaTest
* @run main/othervm -Dsun.java2d.d3d=false -Dsun.java2d.opengl=false
* -Dsun.java2d.uiScale=2 CopyScaledAreaTest
*/
public class CopyScaledAreaTest {
private static final int IMAGE_WIDTH = 800;
private static final int IMAGE_HEIGHT = 800;
private static final int X = 50;
private static final int Y = 50;
private static final int W = 100;
private static final int H = 75;
private static final int DX = 15;
private static final int DY = 10;
private static final int N = 3;
private static final Color BACKGROUND_COLOR = Color.YELLOW;
private static final Color FILL_COLOR = Color.ORANGE;
private static final double[][] SCALES = {{1.3, 1.4}, {0.3, 2.3}, {2.7, 0.1}};
private static boolean isSupported() {
String d3d = System.getProperty("sun.java2d.d3d");
return !Boolean.getBoolean(d3d) || getOSType() == OSType.WINDOWS;
}
private static int scale(int x, double scale) {
return (int) Math.floor(x * scale);
}
private static VolatileImage createVolatileImage(GraphicsConfiguration conf) {
return conf.createCompatibleVolatileImage(IMAGE_WIDTH, IMAGE_HEIGHT);
}
// rendering to the image
private static void renderOffscreen(VolatileImage vImg,
GraphicsConfiguration conf,
double scaleX,
double scaleY)
{
int attempts = 0;
do {
if (attempts > 10) {
throw new RuntimeException("Too many attempts!");
}
if (vImg.validate(conf) == VolatileImage.IMAGE_INCOMPATIBLE) {
// old vImg doesn't work with new GraphicsConfig; re-create it
vImg = createVolatileImage(conf);
}
Graphics2D g = vImg.createGraphics();
//
// miscellaneous rendering commands...
//
g.setColor(BACKGROUND_COLOR);
g.fillRect(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT);
g.scale(scaleX, scaleY);
g.setColor(FILL_COLOR);
g.fillRect(X, Y, W, H);
for (int i = 0; i < N; i++) {
g.copyArea(X + i * DX, Y + i * DY, W, H, DX, DY);
}
g.dispose();
attempts++;
} while (vImg.contentsLost());
}
public static void main(String[] args) throws Exception {
if (!isSupported()) {
return;
}
GraphicsConfiguration graphicsConfiguration =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice().getDefaultConfiguration();
for(double[] scales: SCALES){
testScale(scales[0], scales[1], graphicsConfiguration);
}
}
private static void testScale(double scaleX, double scaleY,
GraphicsConfiguration gc) throws Exception
{
BufferedImage buffImage = new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT,
BufferedImage.TYPE_INT_RGB);
Graphics g = buffImage.createGraphics();
VolatileImage vImg = createVolatileImage(gc);
int attempts = 0;
do {
if (attempts > 10) {
throw new RuntimeException("Too many attempts!");
}
int returnCode = vImg.validate(gc);
if (returnCode == VolatileImage.IMAGE_RESTORED) {
// Contents need to be restored
renderOffscreen(vImg, gc, scaleX, scaleY); // restore contents
} else if (returnCode == VolatileImage.IMAGE_INCOMPATIBLE) {
// old vImg doesn't work with new GraphicsConfig; re-create it
vImg = createVolatileImage(gc);
renderOffscreen(vImg, gc, scaleX, scaleY);
}
g.drawImage(vImg, 0, 0, null);
attempts++;
} while (vImg.contentsLost());
g.dispose();
int x = scale(X + N * DX, scaleX) + 1;
int y = scale(Y + N * DY, scaleY) + 1;
int w = scale(W, scaleX) - 2;
int h = scale(H, scaleY) - 2;
for (int i = x; i < x + w; i++) {
for (int j = y; j < y + h; j++) {
if (buffImage.getRGB(i, j) != FILL_COLOR.getRGB()) {
throw new RuntimeException("Wrong rectangle color!");
}
}
}
}
}