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 | /* @test |
| 25 | * @bug 4311991 |
| 26 | * |
| 27 | * @clean Write Read Foo Bar |
| 28 | * @compile Write.java |
| 29 | * @run main Write |
| 30 | * @clean Write Read Foo Bar |
| 31 | * @compile Read.java |
| 32 | * @run main Read |
| 33 | * |
| 34 | * @summary Test ObjectOutputStream.writeUnshared/readUnshared functionality. |
| 35 | */ |
| 36 | |
| 37 | import java.io.*; |
| 38 | |
| 39 | class Foo implements Serializable { |
| 40 | private static final ObjectStreamField[] serialPersistentFields = |
| 41 | new ObjectStreamField[] { |
| 42 | new ObjectStreamField("shared1", String.class), |
| 43 | new ObjectStreamField("shared2", String.class, false), |
| 44 | new ObjectStreamField("unshared1", String.class, true), |
| 45 | new ObjectStreamField("unshared2", String.class, true) |
| 46 | }; |
| 47 | |
| 48 | String shared1, shared2, unshared1, unshared2; |
| 49 | |
| 50 | Foo() { |
| 51 | shared1 = shared2 = unshared1 = unshared2 = "foo"; |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | class Bar implements Serializable { |
| 56 | private static final long serialVersionUID = 0L; |
| 57 | Object obj; |
| 58 | |
| 59 | Bar(Object obj) { |
| 60 | this.obj = obj; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | public class Write { |
| 65 | public static void main(String[] args) throws Exception { |
| 66 | String str1 = "foo"; |
| 67 | ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| 68 | ObjectOutputStream oout = new ObjectOutputStream(bout); |
| 69 | |
| 70 | oout.writeObject(str1); |
| 71 | oout.writeObject(str1); |
| 72 | oout.writeUnshared(str1); |
| 73 | oout.writeUnshared(str1); |
| 74 | oout.writeObject(new Foo()); |
| 75 | oout.close(); |
| 76 | |
| 77 | ByteArrayInputStream bin = |
| 78 | new ByteArrayInputStream(bout.toByteArray()); |
| 79 | ObjectInputStream oin = new ObjectInputStream(bin); |
| 80 | str1 = (String) oin.readObject(); |
| 81 | if (oin.readObject() != str1) { |
| 82 | throw new Error(); |
| 83 | } |
| 84 | String str2 = (String) oin.readObject(); |
| 85 | String str3 = (String) oin.readObject(); |
| 86 | if (str2 == str1 || str3 == str1 || str2 == str3) { |
| 87 | throw new Error(); |
| 88 | } |
| 89 | if (! (str1.equals(str2) && str1.equals(str3))) { |
| 90 | throw new Error(); |
| 91 | } |
| 92 | |
| 93 | Foo foo = (Foo) oin.readObject(); |
| 94 | if ((foo.shared1 != foo.shared2) || |
| 95 | (foo.shared1 == foo.unshared1) || |
| 96 | (foo.shared1 == foo.unshared2) || |
| 97 | (foo.shared2 == foo.unshared1) || |
| 98 | (foo.shared2 == foo.unshared2) || |
| 99 | (foo.unshared1 == foo.unshared2)) |
| 100 | { |
| 101 | throw new Error(); |
| 102 | } |
| 103 | |
| 104 | // write out object to be read by Read.main() |
| 105 | oout = new ObjectOutputStream(new FileOutputStream("tmp.ser")); |
| 106 | oout.writeObject(new Bar(str1)); |
| 107 | oout.writeObject(str1); |
| 108 | oout.close(); |
| 109 | } |
| 110 | } |