1/* 2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* @test 25 * @bug 4337857 26 * 27 * @clean Write Read A B 28 * @compile Write.java 29 * @run main Write 30 * @clean Write Read A B 31 * @compile Read.java 32 * @run main Read 33 * 34 * @summary Verify that custom serialization methods declared with incorrect 35 * return types are not invoked. 36 */ 37 38import java.io.*; 39 40class B implements Serializable { 41 private static final long serialVersionUID = 0L; 42 43 static boolean writeObjectCalled; 44 static boolean writeReplaceCalled; 45 46 private Object writeObject(ObjectOutputStream out) throws IOException { 47 writeObjectCalled = true; 48 out.defaultWriteObject(); 49 return null; 50 } 51 52 private B writeReplace() throws ObjectStreamException { 53 writeReplaceCalled = true; 54 return this; 55 } 56} 57 58public class Write { 59 public static void main(String[] args) throws Exception { 60 ObjectOutputStream oout = 61 new ObjectOutputStream(new FileOutputStream("tmp.ser")); 62 oout.writeObject(new B()); 63 oout.close(); 64 65 if (B.writeObjectCalled) { 66 throw new Error("writeObject with wrong return type called"); 67 } else if (B.writeReplaceCalled) { 68 throw new Error("writeReplace with wrong return type called"); 69 } 70 } 71} 72