undefect. CWE-407 — 63 sites patched across 27 ecosystems

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.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/awt/image/DrawImage/EABlitTest.java
+++ b/test/jdk/java/awt/image/DrawImage/EABlitTest.java
@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+import java.awt.*;
+import java.awt.image.*;
+import java.util.*;
+import javax.swing.*;
+
+/**
+ * @test
+ * @key headful
+ * @bug 8024895
+ * @summary tests if changing extra alpha values are honored for transformed blits
+ * @author ceisserer
+ */
+public class EABlitTest extends Frame {
+    protected void test() {
+        BufferedImage srcImg = createSrcImage();
+        Image dstImg = getGraphicsConfiguration().createCompatibleVolatileImage(20, 50);
+
+        //be over-cautious and render twice to avoid BI caching issues
+        renderToVI(srcImg, dstImg);
+        renderToVI(srcImg, dstImg);
+
+        BufferedImage validationImg = new BufferedImage(20, 50, BufferedImage.TYPE_INT_RGB);
+        Graphics2D valG = (Graphics2D) validationImg.getGraphics();
+        valG.drawImage(dstImg, 0, 0, null);
+
+        //Loop over all pixel, and count the different pixel values encountered.
+        TreeSet<Integer> colorCntSet = new TreeSet<>();
+        for (int x=0; x < validationImg.getWidth(); x++) {
+            for (int y=0; y < validationImg.getHeight(); y++) {
+                int rgb = validationImg.getRGB(x, y);
+                colorCntSet.add(rgb);
+            }
+        }
+
+        //Check if we encountered 3 different color values in total
+        if (colorCntSet.size() == 3) {
+            System.out.println("Passed!");
+        } else {
+            throw new RuntimeException("Test FAILED!");
+        }
+    }
+
+    protected void renderToVI(BufferedImage src, Image dst) {
+        Graphics2D g = (Graphics2D) dst.getGraphics();
+
+        g.setColor(Color.WHITE);
+        g.fillRect(0, 0, 50, 50);
+        g.rotate(0.5f);
+        g.setRenderingHint(RenderingHints.KEY_RENDERING,
+                           RenderingHints.VALUE_RENDER_QUALITY);
+
+        g.setComposite(AlphaComposite.SrcOver.derive(1f));
+        g.drawImage(src, 10, 10, null);
+
+        g.setComposite(AlphaComposite.SrcOver.derive(0.5f));
+        g.drawImage(src, 20, 20, null);
+    }
+
+    protected BufferedImage createSrcImage() {
+        BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
+        Graphics2D g = (Graphics2D) bi.getGraphics();
+        g.setColor(Color.YELLOW);
+        g.fillRect(0, 0, 10, 10);
+        return bi;
+    }
+
+    public static void main(String[] args) {
+         new EABlitTest().test();
+    }
+}