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/Graphics/RepeatedRepaintTest.java

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 1998, 2025, 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.Font;
+import java.awt.FontMetrics;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.lang.reflect.InvocationTargetException;
+
+/*
+ * @test
+ * @bug 4081126 4129709
+ * @summary Test for proper repainting on multiprocessor systems.
+ * @library /java/awt/regtesthelpers
+ * @build PassFailJFrame
+ * @run main/manual RepeatedRepaintTest
+ */
+public class RepeatedRepaintTest extends Frame {
+    private Font font = null;
+    private Image background;
+
+    static String INSTRUCTIONS = """
+            The frame next to this window called "AWT Draw Test" has
+            some elements drawn on it. Move this window partially outside of the
+            screen bounds and then drag it back. Repeat it couple of times.
+            Drag the instructions window over the frame partially obscuring it.
+            If after number of attempts the frame content stops repainting
+            press "Fail", otherwise press "Pass".
+            """;
+
+    public RepeatedRepaintTest() {
+        setTitle("AWT Draw Test");
+        setSize(300, 300);
+        background = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
+        Graphics g = background.getGraphics();
+        g.setColor(Color.black);
+        g.fillRect(0, 0, 300, 300);
+        g.dispose();
+    }
+
+    public void paint(Graphics g) {
+        Dimension dim = this.getSize();
+        super.paint(g);
+        g.drawImage(background, 0, 0, dim.width, dim.height, null);
+        g.setColor(Color.white);
+        if (font == null) {
+            font = new Font("SansSerif", Font.PLAIN, 24);
+        }
+        g.setFont(font);
+        FontMetrics metrics = g.getFontMetrics();
+        String message = "Draw Test";
+        g.drawString(message, (dim.width / 2) - (metrics.stringWidth(message) / 2),
+                (dim.height / 2) + (metrics.getHeight() / 2));
+
+        int counter = 50;
+        for (int i = 0; i < 50; i++) {
+            counter += 4;
+            g.drawOval(counter, 50, i, i);
+        }
+
+        counter = 20;
+        for (int i = 0; i < 100; i++) {
+            counter += 4;
+            g.drawOval(counter, 150, i, i);
+        }
+        g.setColor(Color.black);
+        g.drawLine(0, dim.height - 25, dim.width, dim.height - 25);
+        g.setColor(Color.gray);
+        g.drawLine(0, dim.height - 24, dim.width, dim.height - 24);
+        g.setColor(Color.lightGray);
+        g.drawLine(0, dim.height - 23, dim.width, dim.height - 23);
+        g.fillRect(0, dim.height - 22, dim.width, dim.height);
+
+
+        g.setXORMode(Color.blue);
+        g.fillRect(0, 0, 25, dim.height - 26);
+        g.setColor(Color.red);
+        g.fillRect(0, 0, 25, dim.height - 26);
+        g.setColor(Color.green);
+        g.fillRect(0, 0, 25, dim.height - 26);
+        g.setPaintMode();
+
+        Image img = createImage(50, 50);
+        Graphics imgGraphics = img.getGraphics();
+        imgGraphics.setColor(Color.magenta);
+        imgGraphics.fillRect(0, 0, 50, 50);
+        imgGraphics.setColor(Color.yellow);
+        imgGraphics.drawString("offscreen", 0, 20);
+        imgGraphics.drawString("image", 0, 30);
+
+        g.drawImage(img, dim.width - 100, dim.height - 100, Color.blue, null);
+
+        g.setXORMode(Color.white);
+        drawAt(g, 100, 100, 50, 50);
+        drawAt(g, 105, 105, 50, 50);
+        drawAt(g, 110, 110, 50, 50);
+    }
+
+    public void drawAt(Graphics g, int x, int y, int width, int height) {
+        g.setColor(Color.magenta);
+        g.fillRect(x, y, width, height);
+    }
+
+    public static void main(String[] args) throws InterruptedException,
+            InvocationTargetException {
+        PassFailJFrame.builder()
+                .title("Repeated Repaint Test Instructions")
+                .instructions(INSTRUCTIONS)
+                .testUI(RepeatedRepaintTest::new)
+                .build()
+                .awaitAndCheck();
+    }
+}