1 /*
2  * Copyright (c) 2017, 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
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22  */
23 
24 /**
25  * @test
26  * @run main/othervm ModuleFinderWithSecurityManager allow
27  * @run main/othervm ModuleFinderWithSecurityManager deny
28  * @summary Basic test for ModuleFinder.ofSystem() with security manager
29  */
30 
31 import java.lang.module.ModuleFinder;
32 import java.lang.module.ModuleReference;
33 import java.nio.file.Path;
34 import java.nio.file.Paths;
35 import java.util.Set;
36 
37 public class ModuleFinderWithSecurityManager {
main(String[] args)38     public static void main(String[] args) throws Exception {
39         boolean allow = args[0].equals("allow");
40 
41         // set security policy to allow access
42         if (allow) {
43             String testSrc = System.getProperty("test.src");
44             if (testSrc == null)
45                 testSrc = ".";
46             Path policyFile = Paths.get(testSrc, "java.policy");
47             System.setProperty("java.security.policy", policyFile.toString());
48         }
49 
50         System.setSecurityManager(new SecurityManager());
51 
52         ModuleFinder finder = null;
53         try {
54             finder = ModuleFinder.ofSystem();
55             if (!allow) throw new RuntimeException("SecurityException expected");
56         } catch (SecurityException e) {
57             if (allow) throw new RuntimeException("SecurityException not expected");
58         }
59 
60         // no additional permissions should be required to locate modules
61         if (finder != null) {
62             ModuleReference base = finder.find("java.base").orElse(null);
63             if (base == null)
64                 throw new RuntimeException("java.base not found");
65             Set<ModuleReference> allModules = finder.findAll();
66             if (!allModules.contains(base))
67                 throw new RuntimeException("java.base not in all modules");
68         }
69     }
70 }
71