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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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54
test/jdk/java/io/Serializable/unresolvedClassDesc/Write.java Normal file
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/*
* Copyright (c) 2001, 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 4482471
*
* @clean Write Read Foo
* @build Write Foo
* @run main Write
* @clean Write Foo
* @build Read
* @run main Read
* @clean Read
*
* @summary Verify that even if an incoming ObjectStreamClass is not resolvable
* to a local class, the ObjectStreamClass object itself is still
* deserializable (without incurring a ClassNotFoundException).
*/
import java.io.*;
public class Write {
public static void main(String[] args) throws Exception {
ObjectOutputStream oout =
new ObjectOutputStream(new FileOutputStream("tmp.ser"));
ObjectStreamClass desc = ObjectStreamClass.lookup(Foo.class);
Foo foo = new Foo();
oout.writeObject(desc);
oout.writeObject(new Object[]{ desc }); // test indirect references
oout.writeObject(foo);
oout.writeObject(new Object[]{ foo });
oout.close();
}
}