/* * 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.*; 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"); } }