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/*
* Copyright (c) 2000, 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.
*/
/* @test
* @bug 4311991
*
* @clean Write Read Foo Bar
* @compile Write.java
* @run main Write
* @clean Write Read Foo Bar
* @compile Read.java
* @run main Read
*
* @summary Test ObjectOutputStream.writeUnshared/readUnshared functionality.
*/
import java.io.*;
class Foo implements Serializable {
private static final ObjectStreamField[] serialPersistentFields =
new ObjectStreamField[] {
new ObjectStreamField("shared1", String.class),
new ObjectStreamField("shared2", String.class, false),
new ObjectStreamField("unshared1", String.class, true),
new ObjectStreamField("unshared2", String.class, true)
};
String shared1, shared2, unshared1, unshared2;
Foo() {
shared1 = shared2 = unshared1 = unshared2 = "foo";
}
}
class Bar implements Serializable {
private static final long serialVersionUID = 0L;
Object obj;
Bar(Object obj) {
this.obj = obj;
}
}
public class Write {
public static void main(String[] args) throws Exception {
String str1 = "foo";
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream oout = new ObjectOutputStream(bout);
oout.writeObject(str1);
oout.writeObject(str1);
oout.writeUnshared(str1);
oout.writeUnshared(str1);
oout.writeObject(new Foo());
oout.close();
ByteArrayInputStream bin =
new ByteArrayInputStream(bout.toByteArray());
ObjectInputStream oin = new ObjectInputStream(bin);
str1 = (String) oin.readObject();
if (oin.readObject() != str1) {
throw new Error();
}
String str2 = (String) oin.readObject();
String str3 = (String) oin.readObject();
if (str2 == str1 || str3 == str1 || str2 == str3) {
throw new Error();
}
if (! (str1.equals(str2) && str1.equals(str3))) {
throw new Error();
}
Foo foo = (Foo) oin.readObject();
if ((foo.shared1 != foo.shared2) ||
(foo.shared1 == foo.unshared1) ||
(foo.shared1 == foo.unshared2) ||
(foo.shared2 == foo.unshared1) ||
(foo.shared2 == foo.unshared2) ||
(foo.unshared1 == foo.unshared2))
{
throw new Error();
}
// write out object to be read by Read.main()
oout = new ObjectOutputStream(new FileOutputStream("tmp.ser"));
oout.writeObject(new Bar(str1));
oout.writeObject(str1);
oout.close();
}
}
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