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/datatransfer/ClipboardPerformanceTest.java
+++ b/test/jdk/java/awt/datatransfer/ClipboardPerformanceTest.java
@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2001, 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.
+ */
+
+/*
+ * @test
+ * @bug 4463560
+ * @requires (os.family == "windows")
+ * @summary Tests that datatransfer doesn't take too much time to complete
+ * @key headful
+ * @library /test/lib
+ * @run main/timeout=300 ClipboardPerformanceTest
+ */
+
+import java.awt.Toolkit;
+import java.awt.datatransfer.Clipboard;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.StringSelection;
+import java.awt.datatransfer.Transferable;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+public class ClipboardPerformanceTest {
+    public static final int CODE_FAILURE = 1;
+    public static final int CODE_OTHER_FAILURE = 2;
+    static String eoln;
+    static char[] text;
+    public static final int ARRAY_SIZE = 100000;
+    public static final int RATIO_THRESHOLD = 10;
+
+    public static void main(String[] args) throws Exception {
+        if (args.length == 0) {
+            ClipboardPerformanceTest clipboardPerformanceTest = new ClipboardPerformanceTest();
+            clipboardPerformanceTest.initialize();
+            return;
+        }
+
+        long before, after, oldTime, newTime;
+        float ratio;
+
+        try {
+            Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
+            before = System.currentTimeMillis();
+            String ss = (String) t.getTransferData(new DataFlavor("text/plain; class=java.lang.String"));
+            after = System.currentTimeMillis();
+
+            System.err.println("Size: " + ss.length());
+            newTime = after - before;
+            System.err.println("Time consumed: " + newTime);
+
+            initArray();
+
+            StringBuffer buf = new StringBuffer(new String(text));
+            int eoln_len = eoln.length();
+            before = System.currentTimeMillis();
+
+            for (int i = 0; i + eoln_len <= buf.length(); i++) {
+                if (eoln.equals(buf.substring(i, i + eoln_len))) {
+                    buf.replace(i, i + eoln_len, "\n");
+                }
+            }
+
+            after = System.currentTimeMillis();
+            oldTime = after - before;
+            System.err.println("Old algorithm: " + oldTime);
+            ratio = oldTime / newTime;
+            System.err.println("Ratio: " + ratio);
+
+            if (ratio < RATIO_THRESHOLD) {
+                System.out.println("Time ratio failure!!");
+                System.exit(CODE_FAILURE);
+            }
+        } catch (Throwable e) {
+            e.printStackTrace();
+            System.exit(CODE_OTHER_FAILURE);
+        }
+        System.out.println("Test Pass!");
+    }
+
+    public static void initArray() {
+        text = new char[ARRAY_SIZE + 2];
+
+        for (int i = 0; i < ARRAY_SIZE; i += 3) {
+            text[i] = '\r';
+            text[i + 1] = '\n';
+            text[i + 2] = 'a';
+        }
+        eoln = "\r\n";
+    }
+
+    public void initialize() throws Exception {
+        initArray();
+        Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
+        cb.setContents(new StringSelection(new String(text)), null);
+
+        ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(
+                ClipboardPerformanceTest.class.getName(),
+                "child"
+        );
+
+        Process process = ProcessTools.startProcess("Child", pb);
+        OutputAnalyzer outputAnalyzer = new OutputAnalyzer(process);
+
+        if (!process.waitFor(15, TimeUnit.SECONDS)) {
+            process.destroyForcibly();
+            throw new TimeoutException("Timed out waiting for Child");
+        }
+
+        outputAnalyzer.shouldHaveExitValue(0);
+    }
+}