| /* |
| * Copyright (c) 2000, 2017, 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 4348213 |
| * @build UnnamedPackageSwitchTest pkg.A |
| * @run main UnnamedPackageSwitchTest |
| * @summary Verify that deserialization allows an incoming class descriptor |
| * representing a class in the unnamed package to be resolved to a |
| * local class with the same name in a named package, and vice-versa. |
| */ |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.ObjectOutputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectStreamClass; |
| import java.io.Serializable; |
| |
| class A implements Serializable { |
| private static final long serialVersionUID = 0L; |
| } |
| |
| class TestObjectInputStream extends ObjectInputStream { |
| TestObjectInputStream(InputStream in) throws IOException { super(in); } |
| protected Class resolveClass(ObjectStreamClass desc) |
| throws IOException, ClassNotFoundException |
| { |
| String name = desc.getName(); |
| if (name.equals("A")) { |
| return pkg.A.class; |
| } else if (name.equals("pkg.A")) { |
| return A.class; |
| } else { |
| return super.resolveClass(desc); |
| } |
| } |
| } |
| |
| public class UnnamedPackageSwitchTest { |
| public static void main(String[] args) throws Exception { |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| ObjectOutputStream oout = new ObjectOutputStream(bout); |
| oout.writeObject(new A()); |
| oout.writeObject(new pkg.A()); |
| oout.close(); |
| |
| ObjectInputStream oin = new TestObjectInputStream( |
| new ByteArrayInputStream(bout.toByteArray())); |
| oin.readObject(); |
| oin.readObject(); |
| } |
| } |