J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999 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 | * @test |
| 26 | * @bug 4216997 |
| 27 | * @summary Cloning a subclass of LinkedList results in an object that isn't |
| 28 | * an instance of the subclass. The same applies to TreeSet and |
| 29 | * TreeMap. |
| 30 | */ |
| 31 | |
| 32 | import java.util.*; |
| 33 | |
| 34 | public class Clone { |
| 35 | public static void main(String[] args) { |
| 36 | LinkedList2 l = new LinkedList2(); |
| 37 | LinkedList2 lClone = (LinkedList2) l.clone(); |
| 38 | if (!(l.equals(lClone) && lClone.equals(l))) |
| 39 | throw new RuntimeException("LinkedList.clone() is broken 1."); |
| 40 | l.add("a"); |
| 41 | lClone = (LinkedList2) l.clone(); |
| 42 | if (!(l.equals(lClone) && lClone.equals(l))) |
| 43 | throw new RuntimeException("LinkedList.clone() is broken 2."); |
| 44 | l.add("b"); |
| 45 | lClone = (LinkedList2) l.clone(); |
| 46 | if (!(l.equals(lClone) && lClone.equals(l))) |
| 47 | throw new RuntimeException("LinkedList.clone() is broken 2."); |
| 48 | |
| 49 | |
| 50 | TreeSet2 s = new TreeSet2(); |
| 51 | TreeSet2 sClone = (TreeSet2) s.clone(); |
| 52 | if (!(s.equals(sClone) && sClone.equals(s))) |
| 53 | throw new RuntimeException("TreeSet.clone() is broken."); |
| 54 | s.add("a"); |
| 55 | sClone = (TreeSet2) s.clone(); |
| 56 | if (!(s.equals(sClone) && sClone.equals(s))) |
| 57 | throw new RuntimeException("TreeSet.clone() is broken."); |
| 58 | s.add("b"); |
| 59 | sClone = (TreeSet2) s.clone(); |
| 60 | if (!(s.equals(sClone) && sClone.equals(s))) |
| 61 | throw new RuntimeException("TreeSet.clone() is broken."); |
| 62 | |
| 63 | TreeMap2 m = new TreeMap2(); |
| 64 | TreeMap2 mClone = (TreeMap2) m.clone(); |
| 65 | if (!(m.equals(mClone) && mClone.equals(m))) |
| 66 | throw new RuntimeException("TreeMap.clone() is broken."); |
| 67 | m.put("a", "b"); |
| 68 | mClone = (TreeMap2) m.clone(); |
| 69 | if (!(m.equals(mClone) && mClone.equals(m))) |
| 70 | throw new RuntimeException("TreeMap.clone() is broken."); |
| 71 | m.put("c", "d"); |
| 72 | mClone = (TreeMap2) m.clone(); |
| 73 | if (!(m.equals(mClone) && mClone.equals(m))) |
| 74 | throw new RuntimeException("TreeMap.clone() is broken."); |
| 75 | } |
| 76 | |
| 77 | private static class LinkedList2 extends LinkedList {}; |
| 78 | private static class TreeSet2 extends TreeSet {}; |
| 79 | private static class TreeMap2 extends TreeMap {}; |
| 80 | } |