1 /* 2 * Copyright (c) 2000, 2010, 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 * 26 * @clean Write Read A B I Handler 27 * @compile Write.java Handler.java 28 * @run main Write 29 * @clean Write Read A B I Handler 30 * @compile Read.java Handler.java 31 * @run main Read 32 * 33 * @summary Verify that ObjectInputStream can skip over unresolvable serialized 34 * proxy instances. 35 */ 36 37 import java.io.*; 38 import java.lang.reflect.*; 39 40 interface I {} // interface present only on writing side 41 42 class A implements Serializable { 43 private static final long serialVersionUID = 0L; 44 String a = "a"; 45 Object proxy; 46 String z = "z"; 47 48 A(Object proxy) { this.proxy = proxy; } 49 } 50 51 class B implements Serializable { 52 private static final long serialVersionUID = 0L; 53 String s = "s"; 54 transient Object proxy; 55 56 B(Object proxy) { this.proxy = proxy; } 57 58 private void writeObject(ObjectOutputStream out) throws IOException { 59 out.defaultWriteObject(); 60 out.writeObject(proxy); 61 } 62 } 63 64 public class Write { 65 public static void main(String[] args) throws Exception { 66 Object proxy = Proxy.newProxyInstance( 67 Write.class.getClassLoader(), 68 new Class[] { I.class }, new Handler()); 69 ObjectOutputStream oout = new ObjectOutputStream( 70 new FileOutputStream("tmp.ser")); 71 oout.writeObject(new A(proxy)); 72 oout.reset(); 73 oout.writeObject(new B(proxy)); 74 oout.writeObject(proxy); 75 oout.close(); 76 } 77 }