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/sun/java2d/loops/CopyAreaSpeed.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2015, 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.Container;
+import java.awt.Dimension;
+import java.awt.Graphics;
+import java.awt.Rectangle;
+import javax.swing.JFrame;
+import javax.swing.JOptionPane;
+
+import java.util.Date;
+
+/*
+ * @test
+ * @bug 4189070
+ * @summary This test prints out the time it takes for a certain amount of
+ * copyArea calls to be completed. Because the performance measurement is
+ * relative, this code only provides a benchmark to run with different releases
+ * to compare the outcomes.
+ * @library /java/awt/regtesthelpers
+ * @build PassFailJFrame
+ * @run main/manual CopyAreaSpeed
+ */
+
+public class CopyAreaSpeed {
+    public static void main(String args[]) throws Exception {
+        String instructions = """
+                    This test prints out the time it takes for a certain amount
+                    of copyArea calls to be completed. Because the performance
+                    measurement is relative, this code only provides a benchmark
+                    to run with different releases to compare the outcomes.
+                """;
+
+        PassFailJFrame.builder()
+                .title("Test Instructions")
+                .instructions(instructions)
+                .rows(5)
+                .columns(35)
+                .testUI(CopyAreaSpeed::initialize)
+                .build()
+                .awaitAndCheck();
+    }
+
+    public static JFrame initialize() {
+        JFrame frame = new JFrame("Copy Area Test");
+        frame.add(new CopyAreaSpeedTest());
+        frame.setSize(300, 320);
+        frame.setVisible(true);
+        return frame;
+    }
+}
+
+class CopyAreaSpeedTest extends Container implements Runnable {
+    int top = 0;
+    public static String result;
+
+    public CopyAreaSpeedTest() {
+        super();
+        (new Thread(this)).start();
+    }
+
+    public void update(Graphics g) {
+        paint(g);
+    }
+
+    public void paint(Graphics g) {
+        synchronized (this) {
+            Rectangle rct = g.getClipBounds();
+            g.setColor(Color.white);
+            g.fillRect(rct.x, rct.y, rct.width, rct.height);
+            g.setFont(getFont());
+            g.setColor(Color.black);
+
+            Dimension dm = getSize();
+            for (int y = 0; y <= (dm.height + 10); y += 20) {
+                if (y > rct.y) {
+                    int z = y / 20 + top;
+                    g.drawString("" + z, 10, y);
+                }
+            }
+        }
+    }
+
+    static long millsec(Date s, Date e) {
+        long ts = s.getTime();
+        long te = e.getTime();
+        return te - ts;
+    }
+
+    public void run() {
+        int count = 1000;
+        int loops = count;
+        Date start;
+        Date end;
+
+        start = new Date();
+        while (count-- > 0) {
+            Dimension dm = getSize();
+            if (dm != null && dm.width != 0 && dm.height != 0) {
+                synchronized (this) {
+                    top++;
+                    Graphics g = getGraphics();
+                    g.copyArea(0, 20, dm.width, dm.height - 20, 0, -20);
+                    g.setClip(0, dm.height - 20, dm.width, 20);
+                    paint(g);
+                    g.dispose();
+                }
+            }
+            try {
+                Thread.sleep(1);
+            } catch (Exception ex) {
+                ex.printStackTrace();
+            }
+        }
+        end = new Date();
+        Graphics g = getGraphics();
+        g.setFont(getFont());
+        g.setColor(Color.black);
+        result = "copyArea X " + loops + " = " + millsec(start, end) + " msec";
+        JOptionPane.showMessageDialog(null, result);
+    }
+}