UmodDiffCL_ExpUnqual.java revision 12723:afedee84773e 
1/*
2 * Copyright (c) 2016, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 * @test
28 * @summary class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2x.
29 *          Access allowed, an unnamed module can read all modules and p2 in module m2x
30 *          which is exported unqualifiedly.
31 * @modules java.base/jdk.internal.misc
32 * @library /test/lib
33 * @compile myloaders/MyDiffClassLoader.java
34 * @compile p2/c2.java
35 * @compile p1/c1.java
36 * @run main/othervm -Xbootclasspath/a:. UmodDiffCL_ExpUnqual
37 */
38
39import static jdk.test.lib.Asserts.*;
40
41import java.lang.module.Configuration;
42import java.lang.module.ModuleDescriptor;
43import java.lang.module.ModuleFinder;
44import java.util.HashMap;
45import java.util.Map;
46import java.util.Set;
47import myloaders.MyDiffClassLoader;
48
49//
50// ClassLoader1 --> defines m1x --> no packages
51// ClassLoader2 --> defines m2x --> packages p2
52//
53// m1x can read m2x
54// package p2 in m2x is exported unqualifiedly.
55//
56// class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2x
57// Access allowed, an unnamed module can read all modules and p2 in module
58//              m2x which is exported unqualifiedly.
59//
60public class UmodDiffCL_ExpUnqual {
61
62    // Create a layer over the boot layer.
63    // Define modules within this layer to test access between
64    // publically defined classes within packages of those modules.
65    public void createLayerOnBoot() throws Throwable {
66
67        // Define module:     m1x
68        // Can read:          java.base, m2x
69        // Packages:          none
70        // Packages exported: none
71        ModuleDescriptor descriptor_m1x =
72                ModuleDescriptor.newModule("m1x")
73                        .requires("java.base")
74                        .requires("m2x")
75                        .build();
76
77        // Define module:     m2x
78        // Can read:          java.base
79        // Packages:          p2
80        // Packages exported: none
81        ModuleDescriptor descriptor_m2x =
82                ModuleDescriptor.newModule("m2x")
83                        .requires("java.base")
84                        .exports("p2")
85                        .build();
86
87        // Set up a ModuleFinder containing all modules for this layer.
88        ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x);
89
90        // Resolves "m1x"
91        Configuration cf = ModuleLayer.boot()
92                .configuration()
93                .resolve(finder, ModuleFinder.of(), Set.of("m1x"));
94
95        // map each module to differing class loaders for this test
96        Map<String, ClassLoader> map = new HashMap<>();
97        map.put("m1x", MyDiffClassLoader.loader1);
98        map.put("m2x", MyDiffClassLoader.loader2);
99
100        // Create layer that contains m1x & m2x
101        ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);
102
103        assertTrue(layer.findLoader("m1x") == MyDiffClassLoader.loader1);
104        assertTrue(layer.findLoader("m2x") == MyDiffClassLoader.loader2);
105        assertTrue(layer.findLoader("java.base") == null);
106
107        // NOTE: module m1x does not define a package named p1.
108        //       p1 will be loaded in an unnamed module.
109        Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1");
110        try {
111            p1_c1_class.newInstance();
112        } catch (IllegalAccessError e) {
113            throw new RuntimeException("Test Failed, p1.c1 defined in unnamed module can access p2.c2 in module m2x");
114        }
115    }
116
117    public static void main(String args[]) throws Throwable {
118      UmodDiffCL_ExpUnqual test = new UmodDiffCL_ExpUnqual();
119      test.createLayerOnBoot();
120    }
121}
122