1/*
2 * Copyright (c) 1998, 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/* @test
25   @bug 4152455
26   @summary A null lock in the create must throw an exception
27*/
28
29
30
31import java.io.*;
32
33public class NullLock {
34    public static void main(String argv[]) throws Exception {
35        if (!testBufferedReader())
36            throw new Exception("Buffered Reader constructor: "
37                                + "Null argument must throw an exception");
38        if (!testBufferedWriter())
39            throw new Exception("BufferedWriter constructor: "
40                                + " Null arg must throw an exception");
41    }
42
43    static boolean testBufferedReader(){
44        try {
45            InputStreamReader isr = null;
46            BufferedReader br = new BufferedReader(isr);
47        } catch(NullPointerException e) {
48            return true;
49        }
50        return false;
51    }
52
53    static boolean testBufferedWriter(){
54        try {
55            OutputStreamWriter isr = null;
56            BufferedWriter br = new BufferedWriter(isr);
57        } catch(NullPointerException e) {
58            return true;
59        }
60        return false;
61    }
62
63}
64