77 lines
2.7 KiB
Java
77 lines
2.7 KiB
Java
/*
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* Copyright (c) 2000, 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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/*
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* @test
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* @bug 4348213
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* @build UnnamedPackageSwitchTest pkg.A
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* @run main UnnamedPackageSwitchTest
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* @summary Verify that deserialization allows an incoming class descriptor
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* representing a class in the unnamed package to be resolved to a
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* local class with the same name in a named package, and vice-versa.
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*/
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.InputStream;
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import java.io.IOException;
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import java.io.ObjectOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectStreamClass;
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import java.io.Serializable;
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class A implements Serializable {
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private static final long serialVersionUID = 0L;
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}
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class TestObjectInputStream extends ObjectInputStream {
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TestObjectInputStream(InputStream in) throws IOException { super(in); }
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protected Class<?> resolveClass(ObjectStreamClass desc)
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throws IOException, ClassNotFoundException
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{
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String name = desc.getName();
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if (name.equals("A")) {
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return pkg.A.class;
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} else if (name.equals("pkg.A")) {
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return A.class;
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} else {
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return super.resolveClass(desc);
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}
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}
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}
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public class UnnamedPackageSwitchTest {
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public static void main(String[] args) throws Exception {
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ByteArrayOutputStream bout = new ByteArrayOutputStream();
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ObjectOutputStream oout = new ObjectOutputStream(bout);
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oout.writeObject(new A());
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oout.writeObject(new pkg.A());
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oout.close();
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ObjectInputStream oin = new TestObjectInputStream(
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new ByteArrayInputStream(bout.toByteArray()));
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oin.readObject();
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oin.readObject();
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}
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}
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