| 1 |
jsr166 |
1.1 |
/* |
| 2 |
jsr166 |
1.2 |
* Copyright (c) 2001, 2005, Oracle and/or its affiliates. All rights reserved. |
| 3 |
jsr166 |
1.1 |
* 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 |
jsr166 |
1.2 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 |
|
|
* or visit www.oracle.com if you need additional information or have any |
| 21 |
|
|
* questions. |
| 22 |
jsr166 |
1.1 |
*/ |
| 23 |
|
|
|
| 24 |
|
|
/* |
| 25 |
|
|
* @test |
| 26 |
|
|
* @bug 4485486 6197726 6232484 |
| 27 |
|
|
* @summary IdentityHashMap's entrySet toArray tests |
| 28 |
|
|
* @author Josh Bloch, Martin Buchholz |
| 29 |
|
|
*/ |
| 30 |
|
|
|
| 31 |
|
|
import java.util.*; |
| 32 |
|
|
|
| 33 |
|
|
public class ToArray { |
| 34 |
|
|
public static void main(String[] args) { |
| 35 |
|
|
//---------------------------------------------------------------- |
| 36 |
|
|
// new ArrayList(IdentityHashMap.entrySet()) |
| 37 |
|
|
// used to return bogus entries. |
| 38 |
|
|
//---------------------------------------------------------------- |
| 39 |
jsr166 |
1.3 |
Map<String,String> mm = new IdentityHashMap<>(); |
| 40 |
jsr166 |
1.1 |
mm.put("foo", "bar"); |
| 41 |
|
|
mm.put("baz", "quux"); |
| 42 |
jsr166 |
1.3 |
List<Map.Entry<String,String>> lm = new ArrayList<>(mm.entrySet()); |
| 43 |
jsr166 |
1.1 |
String s = lm.toString(); |
| 44 |
|
|
if (! (s.equals("[foo=bar, baz=quux]") || |
| 45 |
|
|
s.equals("[baz=quux, foo=bar]"))) |
| 46 |
|
|
throw new Error("bad string"); |
| 47 |
|
|
|
| 48 |
|
|
//---------------------------------------------------------------- |
| 49 |
|
|
// IdentityHashMap's lack of internal entry objects caused |
| 50 |
|
|
// the inherited (AbstractMap) version of toArray to |
| 51 |
|
|
// return garbage when called on the entrySet view. |
| 52 |
|
|
//---------------------------------------------------------------- |
| 53 |
|
|
Map m = new IdentityHashMap(); |
| 54 |
|
|
m.put("french", "connection"); |
| 55 |
|
|
m.put("polish", "sausage"); |
| 56 |
|
|
Object[] mArray = m.entrySet().toArray(); |
| 57 |
|
|
if (mArray[0] == mArray[1]) |
| 58 |
|
|
throw new RuntimeException("Broken"); |
| 59 |
|
|
|
| 60 |
|
|
mArray[0].toString(); |
| 61 |
|
|
mArray[1].toString(); |
| 62 |
|
|
|
| 63 |
|
|
//---------------------------------------------------------------- |
| 64 |
|
|
// IdentityHashMap.entrySet().toArray(T[] a) used to simply |
| 65 |
|
|
// return toArray() ! |
| 66 |
|
|
//---------------------------------------------------------------- |
| 67 |
jsr166 |
1.3 |
IdentityHashMap<Integer,Integer> map = new IdentityHashMap<>(); |
| 68 |
jsr166 |
1.1 |
Set<Map.Entry<Integer,Integer>> es = map.entrySet(); |
| 69 |
|
|
if (es.toArray().length != 0) |
| 70 |
|
|
throw new Error("non-empty"); |
| 71 |
|
|
if (es.toArray(new Object[]{Boolean.TRUE})[0] != null) |
| 72 |
|
|
throw new Error("non-null"); |
| 73 |
|
|
map.put(7,49); |
| 74 |
|
|
if (es.toArray().length != 1) |
| 75 |
|
|
throw new Error("length"); |
| 76 |
|
|
Object[] x = es.toArray(new Object[]{Boolean.TRUE, Boolean.TRUE}); |
| 77 |
|
|
if (x[1] != null) |
| 78 |
|
|
throw new Error("non-null"); |
| 79 |
|
|
Map.Entry e = (Map.Entry) x[0]; |
| 80 |
|
|
if (! e.getKey().equals(new Integer(7))) |
| 81 |
|
|
throw new Error("bad key"); |
| 82 |
|
|
if (! e.getValue().equals(new Integer(49))) |
| 83 |
|
|
throw new Error("bad value"); |
| 84 |
|
|
} |
| 85 |
|
|
} |
