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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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test/jdk/java/io/Serializable/ClassCastExceptionDetail/Read.java Normal file
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/*
* Copyright (c) 2002, 2019, 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 4511532
* @summary Verify that the message string of a ClassCastException thrown by
* ObjectInputStream when attempting to assign a value to a field of
* an incompatible type contains the names of the value's class, the
* field's declaring class, the field's type, and the field itself.
*/
import java.io.*;
class Foo implements Serializable {
private static final long serialVersionUID = 0L;
private Float bar;
}
class Gub extends Foo {
private static final long serialVersionUID = 1L;
}
public class Read {
public static void main(String[] args) throws Exception {
FileInputStream in = new FileInputStream("tmp.ser");
try {
ObjectInputStream oin = new ObjectInputStream(in);
oin.readObject();
throw new Error("readObject should not succeed");
} catch (ClassCastException e) {
String s = e.getMessage();
System.out.println("ClassCastException message: " + s);
if (s == null ||
s.indexOf(Foo.class.getName()) == -1 ||
s.indexOf(Integer.class.getName()) == -1 ||
s.indexOf(Float.class.getName()) == -1 ||
s.indexOf(Gub.class.getName()) == -1 ||
s.indexOf("bar") == -1)
{
throw new Error("ClassNotFoundException message incomplete");
}
} finally {
in.close();
}
}
}