| /* |
| * Copyright (c) 1998, 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 4151469 |
| * @summary Write and read an Externalizable class that defines writeObject. |
| * There was some confusion over writeObject method needing |
| * to be defined by an Externalizable class. It does not |
| * need to exist, but Externalizable class should work correctly |
| * if the member exists. |
| */ |
| |
| import java.io.*; |
| |
| public class DefinesWriteObject implements Externalizable { |
| |
| private int intData = 4; |
| private Object objData = new String("hello"); |
| |
| public DefinesWriteObject() { |
| } |
| |
| public DefinesWriteObject(int i, Object o) { |
| intData = i; |
| objData = o; |
| } |
| |
| /** |
| * There was some confusion over writeObject method needing |
| * to be defined by an Externalizable class. It does not |
| * need to exist, but Externalizable class should work correctly |
| * if the member exists. |
| */ |
| private void writeObject(ObjectOutputStream out) throws IOException { |
| } |
| |
| /** |
| * @serialData Writes an integer, Object. |
| */ |
| public void writeExternal(ObjectOutput out) |
| throws IOException |
| { |
| out.writeInt(intData); |
| out.writeObject(objData); |
| } |
| |
| public void readExternal(ObjectInput in) |
| throws IOException, ClassNotFoundException |
| { |
| intData = in.readInt(); |
| objData = in.readObject(); |
| } |
| |
| public static void main(String args[]) |
| throws IOException, ClassNotFoundException |
| { |
| DefinesWriteObject obj1 = new DefinesWriteObject(5, "GoodBye"); |
| DefinesWriteObject obj2 = new DefinesWriteObject(6, "AuRevoir"); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ObjectOutputStream oos = new ObjectOutputStream(baos); |
| oos.writeObject(obj1); |
| oos.writeObject(obj2); |
| oos.close(); |
| |
| ByteArrayInputStream bais = |
| new ByteArrayInputStream(baos.toByteArray()); |
| ObjectInputStream ois = new ObjectInputStream(bais); |
| DefinesWriteObject readObject1 = (DefinesWriteObject)ois.readObject(); |
| DefinesWriteObject readObject2 = (DefinesWriteObject)ois.readObject(); |
| ois.close(); |
| |
| // verify that deserialize data matches objects serialized. |
| if (obj1.intData != readObject1.intData || |
| obj2.intData != readObject2.intData) { |
| throw new Error("Unexpected mismatch between integer data written and read."); |
| } |
| if ( ! ((String)obj1.objData).equals((String)readObject1.objData) || |
| ! ((String)obj2.objData).equals((String)readObject2.objData)) { |
| throw new Error("Unexpected mismatch between String data written and read."); |
| } |
| } |
| }; |