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/io/Serializable/parents/EvolvedClass.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright (c) 1999, 2019, 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.
+ */
+
+/*
+ * @bug 4186885
+ */
+
+import java.io.*;
+
+public class EvolvedClass {
+    public static void main(String args[]) throws Exception{
+        ASubClass corg = new ASubClass(1, "SerializedByEvolvedClass");
+        ASubClass cnew = null;
+
+        // Deserialize in to new class object
+        FileInputStream fi = new FileInputStream("parents.ser");
+        try {
+            ObjectInputStream si = new ObjectInputStream(fi);
+            cnew = (ASubClass) si.readObject();
+        } finally {
+            fi.close();
+        }
+
+        System.out.println("Printing the deserialized class: ");
+        System.out.println();
+        System.out.println(cnew);
+    }
+}
+
+
+/* During deserialization, the no-arg constructor of a serializable base class
+ * must not be invoked.
+ */
+class ASuperClass implements Serializable {
+    private static final long serialVersionUID = 1L;
+
+    String name;
+
+    ASuperClass() {
+        /*
+         * This method is not to be executed during deserialization for this
+         * example. Must call no-arg constructor of class Object which is the
+         * base class for ASuperClass.
+         */
+        throw new Error("ASuperClass: Wrong no-arg constructor invoked");
+    }
+
+    ASuperClass(String name) {
+        this.name = new String(name);
+    }
+
+    public String toString() {
+        return("Name:  " + name);
+    }
+}
+
+class ASubClass extends ASuperClass implements Serializable {
+    int num;
+
+    private static final long serialVersionUID =6341246181948372513L;
+    ASubClass(int num, String name) {
+        super(name);
+        this.num = num;
+    }
+
+    public String toString() {
+        return (super.toString() + "\nNum:  " + num);
+    }
+}