70 lines
2.9 KiB
Java
70 lines
2.9 KiB
Java
/*
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* Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 8039396
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* @run main UnresolvableObjectStreamClass serialize
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* @clean MySerializable
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* @run main UnresolvableObjectStreamClass deserialize
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*
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* @summary NPE when writing a class descriptor object to a custom
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* ObjectOutputStream
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*/
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import java.io.*;
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public class UnresolvableObjectStreamClass {
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public static void main(String[] args) throws Throwable {
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if (args.length > 0 && args[0].equals("serialize")) {
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try (FileOutputStream fos = new FileOutputStream("temp1.ser");
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ObjectOutputStream oos = new ObjectOutputStream(fos)) {
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ObjectStreamClass osc =
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ObjectStreamClass.lookup(MySerializable.class);
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oos.writeObject(osc);
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}
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} else if (args.length > 0 && args[0].equals("deserialize")) {
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try (FileInputStream fis = new FileInputStream("temp1.ser");
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ObjectInputStream ois = new ObjectInputStream(fis);
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FileOutputStream fos = new FileOutputStream("temp2.ser");
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ObjectOutputStream oos = new ObjectOutputStream(fos) {
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/*must be subclassed*/}) {
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ObjectStreamClass osc = (ObjectStreamClass)ois.readObject();
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// serialize it again
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try {
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oos.writeObject(osc);
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} catch (NullPointerException e) {
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throw new RuntimeException("Failed to write" +
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" unresolvable ObjectStreamClass", e);
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}
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}
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} else {
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throw new RuntimeException("The command line option must be" +
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" one of: serialize or deserialize");
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}
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}
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}
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class MySerializable implements Serializable {
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private static final long serialVersionUID = 1L;
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}
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