1 /*
2  * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 /*
25  * @bug 4075221
26  * @summary Enable serialize of nonSerializable Class descriptor.
27  */
28 
29 import java.io.EOFException;
30 import java.io.File;
31 import java.io.FileOutputStream;
32 import java.io.FileInputStream;
33 import java.io.InvalidClassException;
34 import java.io.ObjectInputStream;
35 import java.io.ObjectOutputStream;
36 import java.io.ObjectStreamClass;
37 
38 class TestEntry {
main(String args[])39     public static void main(String args[]) throws Exception {
40         File f = new File("tmp.ser");
41         if (args[0].compareTo("-s") == 0) {
42             FileOutputStream of = new FileOutputStream(f);
43             ObjectOutputStream oos = new ObjectOutputStream(of);
44             Class cl = Class.forName(args[1]);
45             oos.writeObject(cl);
46             if (ObjectStreamClass.lookup(cl) != null)
47                 oos.writeObject(cl.newInstance());
48             oos.close();
49             System.out.println("Serialized Class " + cl.getName());
50         } else if (args[0].compareTo("-de") == 0) {
51             FileInputStream inf = new FileInputStream(f);
52             ObjectInputStream ois = new ObjectInputStream(inf);
53             Class cl = null;
54             try {
55                 cl = (Class)ois.readObject();
56                 throw new Error("Expected InvalidClassException to be thrown");
57             } catch (InvalidClassException e) {
58                 System.out.println("Caught expected exception DeSerializing class " + e.getMessage());
59             }
60             ois.close();
61         } else if (args[0].compareTo("-doe") == 0) {
62             FileInputStream inf = new FileInputStream(f);
63             ObjectInputStream ois = new ObjectInputStream(inf);
64             Class cl = null;
65             cl = (Class)ois.readObject();
66             try {
67                 ois.readObject();
68                 throw new Error("Expected InvalidClassException to be thrown");
69             } catch (InvalidClassException e) {
70                 System.out.println("Caught expected exception DeSerializing class " + e.getMessage());
71             }
72             ois.close();
73         } else if (args[0].compareTo("-d") == 0) {
74             FileInputStream inf = new FileInputStream(f);
75             ObjectInputStream ois = new ObjectInputStream(inf);
76             Class cl = (Class)ois.readObject();
77             try {
78                 ois.readObject();
79             } catch (EOFException e) {
80             }
81             ois.close();
82             System.out.println("DeSerialized Class " + cl.getName());
83         } else {
84             throw new RuntimeException("Unrecognized argument");
85         }
86     }
87 }
88