0N/A/*
2362N/A * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
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0N/A *
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0N/A */
0N/A
0N/A/* @test
0N/A * @summary Test proper functioning of class-defined writeReplace methods.
0N/A */
0N/A
0N/Aimport java.io.*;
0N/A
0N/Apublic class WriteReplace {
0N/A
0N/A static class ReplaceMe implements Serializable {
0N/A private Object obj;
0N/A private boolean writeReplaceCalled = false;
0N/A
0N/A public ReplaceMe(Object obj) {
0N/A this.obj = obj;
0N/A }
0N/A
0N/A private Object writeReplace() throws ObjectStreamException {
0N/A if (writeReplaceCalled) {
0N/A throw new Error("multiple calls to writeReplace");
0N/A }
0N/A writeReplaceCalled = true;
0N/A return obj;
0N/A }
0N/A }
0N/A
0N/A public static void main(String[] args) throws Exception {
0N/A final int nobjs = 10;
0N/A final int nrounds = 10;
0N/A
0N/A Object common = "foo";
0N/A ReplaceMe[] objs = new ReplaceMe[nobjs];
0N/A for (int i = 0; i < nobjs; i++) {
0N/A objs[i] = new ReplaceMe(common);
0N/A }
0N/A
0N/A ByteArrayOutputStream bout = new ByteArrayOutputStream();
0N/A ObjectOutputStream oout = new ObjectOutputStream(bout);
0N/A for (int i = 0; i < nrounds; i++) {
0N/A for (int j = 0; j < nobjs; j++) {
0N/A oout.writeObject(objs[j]);
0N/A }
0N/A }
0N/A
0N/A oout.flush();
0N/A ByteArrayInputStream bin =
0N/A new ByteArrayInputStream(bout.toByteArray());
0N/A ObjectInputStream oin = new ObjectInputStream(bin);
0N/A common = null;
0N/A
0N/A for (int i = 0; i < nrounds; i++) {
0N/A for (int j = 0; j < nobjs; j++) {
0N/A if (common == null) {
0N/A common = oin.readObject();
0N/A } else {
0N/A if (oin.readObject() != common) {
0N/A throw new Error("incorrect replacement object");
0N/A }
0N/A }
0N/A }
0N/A }
0N/A }
0N/A}