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.

test/jdk/java/awt/Frame/EmptyFrameTest.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 1999, 2024, 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.Color;
+import java.awt.Dimension;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.Robot;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import javax.imageio.ImageIO;
+
+/*
+ * @test
+ * @bug 4237529
+ * @key headful
+ * @summary Test repainting of an empty frame
+ * @run main EmptyFrameTest
+ */
+
+public class EmptyFrameTest {
+    private static Frame f;
+    private static Robot robot;
+    private static volatile Point p;
+    private static volatile Dimension d;
+    private static final int TOLERANCE = 5;
+    public static void main(String[] args) throws Exception {
+        robot = new Robot();
+        robot.setAutoDelay(100);
+        try {
+            EventQueue.invokeAndWait(() -> {
+                createAndShowUI();
+            });
+            robot.delay(1000);
+            f.setSize(50, 50);
+            robot.delay(500);
+            EventQueue.invokeAndWait(() -> {
+                p = f.getLocation();
+                d = f.getSize();
+            });
+            Rectangle rect = new Rectangle(p, d);
+            BufferedImage img = robot.createScreenCapture(rect);
+            if (chkImgBackgroundColor(img)) {
+                try {
+                    ImageIO.write(img, "png", new File("Frame.png"));
+                } catch (IOException ignored) {}
+                throw new RuntimeException("Frame doesn't repaint itself on resize");
+            }
+        } finally {
+            EventQueue.invokeAndWait(() -> {
+                if (f != null) {
+                    f.dispose();
+                }
+            });
+        }
+    }
+
+    private static void createAndShowUI() {
+        f = new Frame("EmptyFrameTest");
+        f.setUndecorated(true);
+        f.setBackground(Color.RED);
+        f.setVisible(true);
+    }
+
+    private static boolean chkImgBackgroundColor(BufferedImage img) {
+        for (int x = 1; x < img.getWidth() - 1; ++x) {
+            for (int y = 1; y < img.getHeight() - 1; ++y) {
+                Color c = new Color(img.getRGB(x, y));
+                if ((c.getRed() - Color.RED.getRed()) > TOLERANCE) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+}