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/VolatileImage/BitmaskVolatileImage.java
+++ b/test/jdk/java/awt/image/VolatileImage/BitmaskVolatileImage.java
@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2015, 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.AlphaComposite;
+import java.awt.Color;
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.awt.image.VolatileImage;
+
+import static java.awt.Transparency.BITMASK;
+
+/**
+ * @test
+ * @key headful
+ * @bug 7188942
+ * @summary We should get correct volatile image, when we use BITMASK
+ *          transparency
+ */
+public final class BitmaskVolatileImage {
+
+    public static final int S = 8;
+
+    public static void main(final String[] args) {
+        GraphicsConfiguration gc =
+                GraphicsEnvironment.getLocalGraphicsEnvironment()
+                        .getDefaultScreenDevice().getDefaultConfiguration();
+        VolatileImage vi = gc.createCompatibleVolatileImage(S, S, BITMASK);
+        BufferedImage ci = gc.createCompatibleImage(S, S, BITMASK);
+
+        int attempt = 0;
+        do {
+            if (++attempt > 10) {
+                throw new RuntimeException("Too many attempts: " + attempt);
+            }
+            vi.validate(gc);
+            test(vi, ci, gc);
+        } while (vi.contentsLost());
+    }
+
+    private static void test(VolatileImage vi, BufferedImage ci, GraphicsConfiguration gc) {
+        for (int r = 0; r <= 255; ++r) {
+            for (int a = 0; a <= 255; ++a) {
+                fill(vi, new Color(r, 0, 0, a));
+                fill(ci, new Color(r, 0, 0, a));
+                validate(ci, vi.getSnapshot());
+            }
+        }
+    }
+
+    private static void fill(Image image, Color color) {
+        Graphics2D g2d = (Graphics2D) image.getGraphics();
+        g2d.setColor(color);
+        g2d.setComposite(AlphaComposite.Src);
+        g2d.fillRect(0, 0, S, S);
+        g2d.dispose();
+    }
+
+    private static void validate(BufferedImage ci, BufferedImage snapshot) {
+        for (int y = 0; y < ci.getHeight(); y++) {
+            for (int x = 0; x < ci.getWidth(); x++) {
+                int ci_rgb = ci.getRGB(x, y);
+                int vi_rgb = snapshot.getRGB(x, y);
+                if (ci_rgb != vi_rgb) {
+                    System.err.println("Exp:" + Integer.toHexString(ci_rgb));
+                    System.err.println("Actual:" + Integer.toHexString(vi_rgb));
+                    throw new RuntimeException("Colors mismatch!");
+                }
+            }
+        }
+    }
+}