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 4311991 |
| 26 | * @summary Test ObjectOutputStream.writeUnshared/readUnshared functionality. |
| 27 | */ |
| 28 | |
| 29 | import java.io.*; |
| 30 | |
| 31 | class Bar implements Serializable { |
| 32 | private static final long serialVersionUID = 0L; |
| 33 | private static final ObjectStreamField[] serialPersistentFields = |
| 34 | new ObjectStreamField[] { |
| 35 | new ObjectStreamField("obj", Object.class, true) |
| 36 | }; |
| 37 | Object obj; |
| 38 | |
| 39 | Bar(Object obj) { |
| 40 | this.obj = obj; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | public class Read { |
| 45 | public static void main(String[] args) throws Exception { |
| 46 | String str = "foo"; |
| 47 | ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| 48 | ObjectOutputStream oout = new ObjectOutputStream(bout); |
| 49 | |
| 50 | oout.writeObject(str); |
| 51 | oout.writeObject(str); |
| 52 | oout.close(); |
| 53 | |
| 54 | byte[] buf = bout.toByteArray(); |
| 55 | ByteArrayInputStream bin = new ByteArrayInputStream(buf); |
| 56 | ObjectInputStream oin = new ObjectInputStream(bin); |
| 57 | oin.readUnshared(); |
| 58 | try { |
| 59 | oin.readObject(); |
| 60 | throw new Error(); |
| 61 | } catch (ObjectStreamException ex) { |
| 62 | } |
| 63 | |
| 64 | bin = new ByteArrayInputStream(buf); |
| 65 | oin = new ObjectInputStream(bin); |
| 66 | oin.readUnshared(); |
| 67 | try { |
| 68 | oin.readUnshared(); |
| 69 | throw new Error(); |
| 70 | } catch (ObjectStreamException ex) { |
| 71 | } |
| 72 | |
| 73 | bin = new ByteArrayInputStream(buf); |
| 74 | oin = new ObjectInputStream(bin); |
| 75 | oin.readObject(); |
| 76 | try { |
| 77 | oin.readUnshared(); |
| 78 | throw new Error(); |
| 79 | } catch (ObjectStreamException ex) { |
| 80 | } |
| 81 | |
| 82 | // read in objects written by Write.main() |
| 83 | oin = new ObjectInputStream(new FileInputStream("tmp.ser")); |
| 84 | oin.readObject(); |
| 85 | try { |
| 86 | oin.readObject(); |
| 87 | throw new Error(); |
| 88 | } catch (ObjectStreamException ex) { |
| 89 | } |
| 90 | |
| 91 | oin = new ObjectInputStream(new FileInputStream("tmp.ser")); |
| 92 | oin.readObject(); |
| 93 | try { |
| 94 | oin.readUnshared(); |
| 95 | throw new Error(); |
| 96 | } catch (ObjectStreamException ex) { |
| 97 | } |
| 98 | } |
| 99 | } |