/* * Copyright (c) 2002, 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 4764280 * @summary Verify that if a serializable class declares multiple * serialPersistentFields that share the same name, calling * ObjectStreamClass.lookup() for that class will not result in an * InternalError, and that attempts at default serialization or * deserialization of such a class will result in * InvalidClassExceptions. */ import java.io.*; class A implements Serializable { private static final long serialVersionUID = 0L; int i; } class B implements Serializable { private static final long serialVersionUID = 0L; int i; } public class Setup { public static void main(String[] args) throws Exception { ObjectOutputStream oout = new ObjectOutputStream(new FileOutputStream("a.ser")); oout.writeObject(new A()); oout.close(); oout = new ObjectOutputStream(new FileOutputStream("b.ser")); oout.writeObject(new B()); oout.close(); } }