J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-1998 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @clean A B Container ReplacerObjectOutputStream |
| 26 | * @summary Verify that ClassCastException is thrown when deserializing |
| 27 | * an object and one of its object fields is incompatibly replaced |
| 28 | * by either replaceObject/resolveObject. |
| 29 | * |
| 30 | */ |
| 31 | import java.io.*; |
| 32 | |
| 33 | class A implements Serializable {} |
| 34 | |
| 35 | class B implements Serializable {} |
| 36 | |
| 37 | class Container implements Serializable { |
| 38 | A a = new A(); |
| 39 | } |
| 40 | |
| 41 | class ReplacerObjectOutputStream extends ObjectOutputStream { |
| 42 | static B b = new B(); |
| 43 | public ReplacerObjectOutputStream(OutputStream out) throws IOException { |
| 44 | super(out); |
| 45 | enableReplaceObject(true); |
| 46 | } |
| 47 | |
| 48 | protected Object replaceObject(Object obj) throws IOException { |
| 49 | if(obj instanceof A) { |
| 50 | System.err.println("replaceObject(" + obj.toString() + ") with " + |
| 51 | b.toString()); |
| 52 | return b; |
| 53 | } else return obj; |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | public class BadSubstByReplace { |
| 58 | public static void main(String args[]) throws IOException, ClassNotFoundException { |
| 59 | Container c = new Container(); |
| 60 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| 61 | ReplacerObjectOutputStream out = new ReplacerObjectOutputStream(baos); |
| 62 | out.writeObject(c); |
| 63 | out.close(); |
| 64 | ObjectInputStream in = |
| 65 | new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray())); |
| 66 | try { |
| 67 | c = (Container)in.readObject(); // throws IllegalArgumentException. |
| 68 | throw new Error("Should have thrown ClassCastException"); |
| 69 | } catch ( ClassCastException e) { |
| 70 | System.err.println("Caught expected exception " + e.toString()); |
| 71 | e.printStackTrace(); |
| 72 | } finally { |
| 73 | in.close(); |
| 74 | } |
| 75 | } |
| 76 | } |