--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/io/Serializable/evolution/AddedSuperClass/ReadAddedSuperClass.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,61 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ *  @bug 4070080
+ *
+ *  @build WriteAddedSuperClass ReadAddedSuperClass
+ *  @run main ReadAddedSuperClass
+ *  @summary Test reading an evolved class serialization into the original class
+ *           version. Class evolved by adding a superclass.
+ *           This is a compatible class evolution.
+ *
+ *  Part a of test serializes an instance of an evolved class to a serialization stream.
+ *  Part b of test deserializes the serialization stream into an instance of
+ *  the original class.
+ *
+ *  Description of failure:
+ *
+ *  If you delete AddedSuperClass.class before running this test,
+ *  both JDK 1.1.x and 1.2 result in ClassNotFoundException for class
+ *  AddedSuperClass.  If the .class file is not deleted, 1.2 does not
+ *  fail. However, JDK 1.1.4 core dumps dereferencing a null class handle
+ *  in the native method for inputClassDescriptor.
+ */
+
+import java.io.*;
+
+class A implements Serializable {
+    // Version 1.0 of class A.
+    private static final long serialVersionUID = 1L;
+}
+
+public class ReadAddedSuperClass {
+    public static void main(String args[]) throws IOException, ClassNotFoundException {
+        File f = new File("tmp.ser");
+        ObjectInput in =
+            new ObjectInputStream(new FileInputStream(f));
+        A a = (A)in.readObject();
+        in.close();
+    }
+}