59 lines
2.2 KiB
Java
59 lines
2.2 KiB
Java
/*
|
|
* Copyright 2000 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.
|
|
*/
|
|
|
|
/* @test
|
|
* @bug 4334623
|
|
* @summary Verify that serialPersistentFields cannot be used to cause
|
|
* deserialization to set the value of a static field.
|
|
*/
|
|
|
|
import java.io.*;
|
|
|
|
public class ModifyStaticFields implements Serializable {
|
|
private static final ObjectStreamField[] serialPersistentFields =
|
|
new ObjectStreamField[] { new ObjectStreamField("str", String.class) };
|
|
|
|
static String str = "foo";
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
ByteArrayOutputStream bout = new ByteArrayOutputStream();
|
|
ObjectOutputStream oout = new ObjectOutputStream(bout);
|
|
oout.writeObject(new ModifyStaticFields());
|
|
oout.close();
|
|
|
|
String origStr = str;
|
|
ObjectInputStream oin = new ObjectInputStream(
|
|
new ByteArrayInputStream(bout.toByteArray()));
|
|
oin.readObject();
|
|
if (str != origStr) {
|
|
throw new Error("deserialization modified static field");
|
|
}
|
|
}
|
|
|
|
private void writeObject(ObjectOutputStream out) throws IOException {
|
|
ObjectOutputStream.PutField pf = out.putFields();
|
|
pf.put("str", "bar");
|
|
out.writeFields();
|
|
}
|
|
}
|