1 /*
2  * Copyright (c) 2003, 2007, 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 4898428
27  * @summary test that the new getInstance() implementation works correctly
28  * @author Andreas Sterbenz
29  */
30 
31 import java.security.*;
32 
33 import javax.crypto.*;
34 
35 public class TestGetInstance {
36 
same(Object o1, Object o2)37     private static void same(Object o1, Object o2) throws Exception {
38         if (o1 != o2) {
39             throw new Exception("not same object");
40         }
41     }
42 
main(String[] args)43     public static void main(String[] args) throws Exception {
44         long start = System.currentTimeMillis();
45 
46         Provider p = Security.getProvider("SunJCE");
47 
48         Mac mac;
49 
50         mac = Mac.getInstance("hmacmd5");
51         System.out.println("Default: " + mac.getProvider().getName());
52         mac = Mac.getInstance("hmacmd5", "SunJCE");
53         same(p, mac.getProvider());
54         mac = Mac.getInstance("hmacmd5", p);
55         same(p, mac.getProvider());
56 
57         try {
58             mac = Mac.getInstance("foo");
59             throw new AssertionError();
60         } catch (NoSuchAlgorithmException e) {
61             System.out.println(e);
62         }
63         try {
64             mac = Mac.getInstance("foo", "SunJCE");
65             throw new AssertionError();
66         } catch (NoSuchAlgorithmException e) {
67             System.out.println(e);
68         }
69         try {
70             mac = Mac.getInstance("foo", p);
71             throw new AssertionError();
72         } catch (NoSuchAlgorithmException e) {
73             System.out.println(e);
74         }
75 
76         try {
77             mac = Mac.getInstance("foo", "SUN");
78             throw new AssertionError();
79         } catch (NoSuchAlgorithmException e) {
80             System.out.println(e);
81         }
82         try {
83             mac = Mac.getInstance("foo", Security.getProvider("SUN"));
84             throw new AssertionError();
85         } catch (NoSuchAlgorithmException e) {
86             System.out.println(e);
87         }
88         try {
89             mac = Mac.getInstance("foo", "foo");
90             throw new AssertionError();
91         } catch (NoSuchProviderException e) {
92             System.out.println(e);
93         }
94         long stop = System.currentTimeMillis();
95         System.out.println("Done (" + (stop - start) + " ms).");
96     }
97 }
98