/* * Copyright (c) 1998, 2001, 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 4088176 * * @clean A D NewExternFieldClass ReadAddedField WriteAddedField * @compile WriteAddedField.java * @run main WriteAddedField * @clean A D NewExternFieldClass ReadAddedField WriteAddedField * @compile ReadAddedField.java * @run main ReadAddedField * * @summary Evolution: read evolved class with new field of a non-existing Externalizable class. */ import java.io.*; class NewExternFieldClass implements Externalizable { byte l; public NewExternFieldClass() { l = 0; } public NewExternFieldClass(byte value) { l = value; } public void readExternal(ObjectInput s) throws IOException, ClassNotFoundException { l = s.readByte(); System.out.println("readExternal read " + l); } public void writeExternal(ObjectOutput s) throws IOException { s.writeByte(l); } } class D implements Serializable { public int x; D(int y) { x = y; } } class A implements Serializable { // Version 1.1 of class A. Added superclass NewSerializableSuper. private static final long serialVersionUID = 1L; NewExternFieldClass foo; D zoo; int bar; A() { bar = 4; foo = new NewExternFieldClass((byte)66); zoo = new D(22); } } public class WriteAddedField { public static void main(String args[]) throws IOException { A a = new A(); File f = new File("tmp.ser"); ObjectOutput out = new ObjectOutputStream(new FileOutputStream(f)); out.writeObject(a); out.writeObject(new A()); out.close(); } }