1 /*
 2  * Copyright (c) 2001, 2026, Oracle and/or its affiliates. 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 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  */
23 
24 /*
25  * @test
26  * @bug 4528331 5006032
27  * @summary Test Collections.binarySearch() with a null comparator
28  * @library /test/lib
29  */
30 
31 import jdk.test.lib.valueclass.VClass;
32 import java.util.Arrays;
33 import java.util.Collections;
34 import java.util.List;
35 
36 public class BinarySearchNullComparator {
37 
38     public static void main(String[] args) throws Exception {
39         List list = Arrays.asList(new String[] {"I", "Love", "You"});
40 
41         int result = Collections.binarySearch(list, "You", null);
42         if (result != 2)
43             throw new Exception("Result: " + result);
44 
45         List<VClass> values = Arrays.asList(new VClass(1, new int[] { 1 }), new VClass(2, new int[] { 2 }), new VClass(3, new int[] { 3 }));
46         int vresult = Collections.binarySearch(values, new VClass(3, new int[] { 3 }), null);
47         if (vresult != 2)
48             throw new Exception("Value result: " + vresult);
49     }
50 }
--- EOF ---