| /* |
| * Copyright (c) 1997, 1999, 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 4088176 |
| * @build WriteAddedField ReadAddedField |
| * @run main ReadAddedField |
| * |
| * @summary Deserialize an evolved class with a new field, field type is new. |
| * |
| */ |
| |
| import java.io.*; |
| |
| class IncompatibleFieldClass implements Serializable { |
| private static long serialVersionUID = 4L; |
| int x = 5; |
| }; |
| |
| class A implements Serializable { |
| // Version 1.0 of class A. |
| private static final long serialVersionUID = 1L; |
| public int bar; |
| } |
| |
| /** Test serial persistent fields w/o using Alternate API. |
| */ |
| class B implements Serializable { |
| private static final long serialVersionUID = 2L; |
| int bar; |
| |
| B() { |
| bar = 4; |
| } |
| } |
| |
| /** Test serial persistent fields using Alternate API. |
| * Also make sure that optional data to non-existent classes can be skipped. |
| */ |
| class C implements Serializable { |
| private static final long serialVersionUID = 3L; |
| int bar; |
| |
| C() { |
| bar = 4; |
| } |
| |
| private void readObject(ObjectInputStream s) |
| throws IOException, ClassNotFoundException |
| { |
| s.defaultReadObject(); |
| } |
| |
| private void writeObject(ObjectOutputStream s) |
| throws IOException |
| { |
| s.defaultWriteObject(); |
| } |
| } |
| |
| public class ReadAddedField { |
| public static void main(String args[]) |
| throws IOException, ClassNotFoundException |
| { |
| File f = new File("tmp.ser"); |
| ObjectInput in = |
| new ObjectInputStream(new FileInputStream(f)); |
| A a = (A)in.readObject(); |
| if (a.bar != 4) |
| throw new RuntimeException("a.bar does not equal 4, it equals " + |
| a.bar); |
| B b = (B)in.readObject(); |
| if (b.bar != 4) |
| throw new RuntimeException("b.bar does not equal 4, it equals " + |
| b.bar); |
| C c = (C)in.readObject(); |
| if (c.bar != 4) |
| throw new RuntimeException("c.bar does not equal 4, it equals " + |
| c.bar); |
| A aa = (A)in.readObject(); |
| if (aa.bar != 4) |
| throw new RuntimeException("a.bar does not equal 4, it equals " + |
| aa.bar); |
| B bb = (B)in.readObject(); |
| if (bb.bar != 4) |
| throw new RuntimeException("b.bar does not equal 4, it equals " + |
| bb.bar); |
| C cc = (C)in.readObject(); |
| if (cc.bar != 4) |
| throw new RuntimeException("c.bar does not equal 4, it equals " + |
| cc.bar); |
| in.close(); |
| } |
| } |