J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2000 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 | /* |
| 25 | * @bug 4363844 |
| 26 | * @summary Verify that a custom readObjectNoData method, if defined properly |
| 27 | * by a serializable superclass, gets invoked during deserialization |
| 28 | * of a subclass instance whose serialized form omits a class |
| 29 | * descriptor corresponding to the superclass. |
| 30 | */ |
| 31 | |
| 32 | import java.io.*; |
| 33 | |
| 34 | /* Non-serializable superclass which defines readObjectNoData: |
| 35 | * readObjectNoData should not get called. |
| 36 | */ |
| 37 | class A { |
| 38 | private static final long serialVersionUID = 0L; |
| 39 | boolean aCalled = false; |
| 40 | private void readObjectNoData() throws ObjectStreamException { |
| 41 | aCalled = true; |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | /* Serializable superclass which defines readObjectNoData with wrong signature: |
| 46 | * readObjectNoData should not get called. |
| 47 | */ |
| 48 | class B extends A implements Serializable { |
| 49 | private static final long serialVersionUID = 0L; |
| 50 | boolean bCalled = false; |
| 51 | private void readObjectNoData(int wrong) throws ObjectStreamException { |
| 52 | bCalled = true; |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /* Serializable superclass which defines readObjectNoData correctly, and is not |
| 57 | * listed in stream: readObjectNoData should get called. |
| 58 | */ |
| 59 | class C extends B { |
| 60 | private static final long serialVersionUID = 0L; |
| 61 | boolean cCalled = false; |
| 62 | private void readObjectNoData() throws ObjectStreamException { |
| 63 | cCalled = true; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | /* Serializable superclass which defines readObjectNoData correctly, but whose |
| 68 | * corresponding class descriptor is listed in stream: readObjectNoData should |
| 69 | * not get called. |
| 70 | */ |
| 71 | class D extends C { |
| 72 | private static final long serialVersionUID = 0L; |
| 73 | boolean dCalled = false; |
| 74 | private void readObjectNoData() throws ObjectStreamException { |
| 75 | dCalled = true; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | /* Serializable superclass which defines readObjectNoData with wrong access: |
| 80 | * readObjectNoData should not get called. |
| 81 | */ |
| 82 | class E extends D { |
| 83 | private static final long serialVersionUID = 0L; |
| 84 | boolean eCalled = false; |
| 85 | void readObjectNoData() throws ObjectStreamException { |
| 86 | eCalled = true; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | /* Instance class. |
| 91 | */ |
| 92 | class F extends E { |
| 93 | private static final long serialVersionUID = 0L; |
| 94 | } |
| 95 | |
| 96 | public class Read { |
| 97 | public static void main(String[] args) throws Exception { |
| 98 | ObjectInputStream oin = |
| 99 | new ObjectInputStream(new FileInputStream("tmp.ser")); |
| 100 | F f = (F) oin.readObject(); |
| 101 | if (f.aCalled || f.bCalled || f.dCalled || f.eCalled) { |
| 102 | throw new Error("readObjectNoData invoked erroneously"); |
| 103 | } |
| 104 | if (! f.cCalled) { |
| 105 | throw new Error("readObjectNoData not invoked"); |
| 106 | } |
| 107 | } |
| 108 | } |