1/*
2 * Copyright (c) 1999, 2011, 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 4273454 7054918 7052537
27 * @library ../testlibrary
28 * @summary Make sure getProviders(filter) doesn't throw NPE
29 * @run main/othervm NoInstalledProviders
30 */
31
32import java.security.*;
33
34public class NoInstalledProviders {
35
36    public static void main(String[] args) throws Exception {
37        ProvidersSnapshot snapshot = ProvidersSnapshot.create();
38        try {
39            main0(args);
40        } finally {
41            snapshot.restore();
42        }
43    }
44
45    public static void main0(String[] args) throws Exception {
46
47        Provider[] provs = Security.getProviders();
48        // make sure there are no providers in the system
49        for(int i = 0; i < provs.length; i++ ) {
50            Security.removeProvider( provs[i].getName());
51        }
52
53        String filter = "Signature.SHA1withDSA";
54
55        provs = Security.getProviders(filter);
56    }
57}
58