105 lines
3.6 KiB
Java
105 lines
3.6 KiB
Java
/*
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* Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4151469
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* @summary Write and read an Externalizable class that defines writeObject.
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* There was some confusion over writeObject method needing
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* to be defined by an Externalizable class. It does not
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* need to exist, but Externalizable class should work correctly
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* if the member exists.
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*/
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import java.io.*;
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public class DefinesWriteObject implements Externalizable {
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private int intData = 4;
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private Object objData = new String("hello");
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public DefinesWriteObject() {
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}
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public DefinesWriteObject(int i, Object o) {
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intData = i;
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objData = o;
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}
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/**
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* There was some confusion over writeObject method needing
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* to be defined by an Externalizable class. It does not
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* need to exist, but Externalizable class should work correctly
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* if the member exists.
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*/
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private void writeObject(ObjectOutputStream out) throws IOException {
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}
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/**
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* @serialData Writes an integer, Object.
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*/
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public void writeExternal(ObjectOutput out)
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throws IOException
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{
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out.writeInt(intData);
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out.writeObject(objData);
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}
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public void readExternal(ObjectInput in)
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throws IOException, ClassNotFoundException
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{
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intData = in.readInt();
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objData = in.readObject();
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}
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public static void main(String args[])
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throws IOException, ClassNotFoundException
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{
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DefinesWriteObject obj1 = new DefinesWriteObject(5, "GoodBye");
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DefinesWriteObject obj2 = new DefinesWriteObject(6, "AuRevoir");
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ObjectOutputStream oos = new ObjectOutputStream(baos);
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oos.writeObject(obj1);
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oos.writeObject(obj2);
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oos.close();
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ByteArrayInputStream bais =
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new ByteArrayInputStream(baos.toByteArray());
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ObjectInputStream ois = new ObjectInputStream(bais);
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DefinesWriteObject readObject1 = (DefinesWriteObject)ois.readObject();
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DefinesWriteObject readObject2 = (DefinesWriteObject)ois.readObject();
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ois.close();
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// verify that deserialize data matches objects serialized.
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if (obj1.intData != readObject1.intData ||
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obj2.intData != readObject2.intData) {
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throw new Error("Unexpected mismatch between integer data written and read.");
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}
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if ( ! ((String)obj1.objData).equals((String)readObject1.objData) ||
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! ((String)obj2.objData).equals((String)readObject2.objData)) {
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throw new Error("Unexpected mismatch between String data written and read.");
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}
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}
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};
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