| /* |
| * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4224271 |
| * @summary A null Comparator is now specified to indicate natural ordering. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class NullComparator { |
| public static void main(String[] args) throws Exception { |
| List list = new ArrayList(100); |
| for (int i=0; i<100; i++) |
| list.add(new Integer(i)); |
| List sorted = new ArrayList(list); |
| Collections.shuffle(list); |
| |
| Object[] a = list.toArray(); |
| Arrays.sort(a, null); |
| if (!Arrays.asList(a).equals(sorted)) |
| throw new Exception("Arrays.sort"); |
| a = list.toArray(); |
| Arrays.sort(a, 0, 100, null); |
| if (!Arrays.asList(a).equals(sorted)) |
| throw new Exception("Arrays.sort(from, to)"); |
| if (Arrays.binarySearch(a, new Integer(69)) != 69) |
| throw new Exception("Arrays.binarySearch"); |
| |
| List tmp = new ArrayList(list); |
| Collections.sort(tmp, null); |
| if (!tmp.equals(sorted)) |
| throw new Exception("Collections.sort"); |
| if (Collections.binarySearch(tmp, new Integer(69)) != 69) |
| throw new Exception("Collections.binarySearch"); |
| if (!Collections.min(list, null).equals(new Integer(0))) |
| throw new Exception("Collections.min"); |
| if (!Collections.max(list, null).equals(new Integer(99))) |
| throw new Exception("Collections.max"); |
| } |
| } |