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/lang/instrument/RetransformApp.java
+++ b/test/jdk/java/lang/instrument/RetransformApp.java
@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2005, 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.io.PrintStream;
+import java.nio.file.Path;
+
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.helpers.ClassFileInstaller;
+
+/*
+ * @test
+ * @bug 6274264 6274241 5070281
+ * @summary test retransformClasses
+ *
+ * @modules java.instrument
+ * @library /test/lib
+ * @build RetransformAgent asmlib.Instrumentor
+ * @run driver/timeout=240 RetransformApp roleDriver
+ * @comment The test uses a higher timeout to prevent test timeouts noted in JDK-6528548
+ */
+public class RetransformApp {
+
+    public static void main(String[] args) throws Exception {
+        if (args.length == 1) {
+            if (!"roleDriver".equals(args[0])) {
+                throw new Exception("unexpected program argument: " + args[0]);
+            }
+            // launch the RetransformApp java process after creating the necessary
+            // infrastructure
+            System.out.println("creating agent jar");
+            final Path agentJar = createAgentJar();
+            System.out.println("launching app, with javaagent jar: " + agentJar);
+            launchApp(agentJar);
+        } else {
+            System.err.println("running app");
+            new RetransformApp().run(System.out);
+        }
+    }
+
+    private static Path createAgentJar() throws Exception {
+        Path agentJar = Path.of("RetransformAgent.jar");
+        final String manifest = """
+                Manifest-Version: 1.0
+                Premain-Class: RetransformAgent
+                Can-Retransform-Classes: true
+                """;
+        System.out.println("Manifest is:\n" + manifest);
+        ClassFileInstaller.writeJar(agentJar.getFileName().toString(),
+                ClassFileInstaller.Manifest.fromString(manifest),
+                "RetransformAgent",
+                "asmlib.Instrumentor");
+        return agentJar;
+    }
+
+    private static void launchApp(final Path agentJar) throws Exception {
+        final OutputAnalyzer oa = ProcessTools.executeTestJava(
+                "-javaagent:" + agentJar.toString(),
+                RetransformApp.class.getName());
+        oa.shouldHaveExitValue(0);
+        // make available stdout/stderr in the logs, even in case of successful completion
+        oa.reportDiagnosticSummary();
+    }
+
+    int foo(int x) {
+        return x * x;
+    }
+
+    public void run(PrintStream out) throws Exception {
+        out.println("start");
+        for (int i = 0; i < 4; i++) {
+            if (foo(3) != 9) {
+                throw new Exception("ERROR: unexpected application behavior");
+            }
+        }
+        out.println("undo");
+        RetransformAgent.undo();
+        for (int i = 0; i < 4; i++) {
+            if (foo(3) != 9) {
+                throw new Exception("ERROR: unexpected application behavior");
+            }
+        }
+        out.println("end");
+        if (RetransformAgent.succeeded()) {
+            out.println("Instrumentation succeeded.");
+        } else {
+            throw new Exception("ERROR: Instrumentation failed.");
+        }
+    }
+}