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/RedefineSubclassWithTwoInterfacesApp.java
+++ b/test/jdk/java/lang/instrument/RedefineSubclassWithTwoInterfacesApp.java
@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2013, 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.*;
+import java.lang.instrument.*;
+
+public class RedefineSubclassWithTwoInterfacesApp {
+    public static void main(String args[]) throws Exception {
+        System.out.println("Hello from RedefineSubclassWithTwoInterfacesApp!");
+
+        new RedefineSubclassWithTwoInterfacesApp().doTest();
+
+        System.exit(0);
+    }
+
+    private void doTest() throws Exception {
+        RedefineSubclassWithTwoInterfacesImpl impl
+            = new RedefineSubclassWithTwoInterfacesImpl();
+        RedefineSubclassWithTwoInterfacesRemote remote
+            = new RedefineSubclassWithTwoInterfacesRemote(impl, impl);
+        String mesg;
+
+        // make echo() calls before any redefinitions:
+        mesg = remote.echo1("test message #1.1");
+        System.out.println("RedefineSubclassWithTwoInterfacesApp: echo1 mesg='"
+            + mesg + "' before any redefines");
+        mesg = remote.echo2("test message #2.1");
+        System.out.println("RedefineSubclassWithTwoInterfacesApp: echo2 mesg='"
+            + mesg + "' before any redefines");
+
+
+        // redefining RedefineSubclassWithTwoInterfacesImpl before
+        // RedefineSubclassWithTwoInterfacesTarget fails:
+        do_redefine("RedefineSubclassWithTwoInterfacesImpl", 1);
+        do_redefine("RedefineSubclassWithTwoInterfacesTarget", 1);
+
+        mesg = remote.echo1("test message #1.2");
+        System.out.println("RedefineSubclassWithTwoInterfacesApp: echo1 mesg='"
+            + mesg + "' after redefine");
+        mesg = remote.echo2("test message #2.2");
+        System.out.println("RedefineSubclassWithTwoInterfacesApp: echo2 mesg='"
+            + mesg + "' after redefine");
+    }
+
+    private static void do_redefine(String className, int counter)
+            throws Exception {
+        File f = new File(className + "_" + counter + ".class");
+        System.out.println("Reading test class from " + f);
+        InputStream redefineStream = new FileInputStream(f);
+
+        byte[] redefineBuffer
+            = NamedBuffer.loadBufferFromStream(redefineStream);
+
+        ClassDefinition redefineParamBlock = new ClassDefinition(
+            Class.forName(className), redefineBuffer);
+
+        RedefineSubclassWithTwoInterfacesAgent.getInstrumentation().
+            redefineClasses(new ClassDefinition[] {redefineParamBlock});
+    }
+}