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/*
* Copyright (c) 1997, 1999, 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 4088176
* @build WriteAddedField ReadAddedField
* @run main ReadAddedField
*
* @summary Deserialize an evolved class with a new field, field type is new.
*
*/
import java.io.*;
class IncompatibleFieldClass implements Serializable {
private static long serialVersionUID = 4L;
int x = 5;
};
class A implements Serializable {
// Version 1.0 of class A.
private static final long serialVersionUID = 1L;
public int bar;
}
/** Test serial persistent fields w/o using Alternate API.
*/
class B implements Serializable {
private static final long serialVersionUID = 2L;
int bar;
B() {
bar = 4;
}
}
/** Test serial persistent fields using Alternate API.
* Also make sure that optional data to non-existent classes can be skipped.
*/
class C implements Serializable {
private static final long serialVersionUID = 3L;
int bar;
C() {
bar = 4;
}
private void readObject(ObjectInputStream s)
throws IOException, ClassNotFoundException
{
s.defaultReadObject();
}
private void writeObject(ObjectOutputStream s)
throws IOException
{
s.defaultWriteObject();
}
}
public class ReadAddedField {
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();
if (a.bar != 4)
throw new RuntimeException("a.bar does not equal 4, it equals " +
a.bar);
B b = (B)in.readObject();
if (b.bar != 4)
throw new RuntimeException("b.bar does not equal 4, it equals " +
b.bar);
C c = (C)in.readObject();
if (c.bar != 4)
throw new RuntimeException("c.bar does not equal 4, it equals " +
c.bar);
A aa = (A)in.readObject();
if (aa.bar != 4)
throw new RuntimeException("a.bar does not equal 4, it equals " +
aa.bar);
B bb = (B)in.readObject();
if (bb.bar != 4)
throw new RuntimeException("b.bar does not equal 4, it equals " +
bb.bar);
C cc = (C)in.readObject();
if (cc.bar != 4)
throw new RuntimeException("c.bar does not equal 4, it equals " +
cc.bar);
in.close();
}
}
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