1 /*
2 * Copyright (c) 2016, 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 Test that if package p2 in module m2 is exported to module m3,
29 * then class p1.c1 in an unnamed module can not read p2.c2 in module m2.
30 * @modules java.base/jdk.internal.misc
31 * @library /testlibrary /test/lib
32 * @compile myloaders/MySameClassLoader.java
33 * @compile p2/c2.java
34 * @compile p1/c1.java
35 * @build Umod_ExpQualOther
36 * @run main/othervm -Xbootclasspath/a:. Umod_ExpQualOther
37 */
38
39 import static jdk.test.lib.Asserts.*;
40
41 import java.lang.reflect.Layer;
42 import java.lang.module.Configuration;
43 import java.lang.module.ModuleDescriptor;
44 import java.lang.module.ModuleFinder;
45 import java.util.HashMap;
46 import java.util.Map;
47 import java.util.Set;
48 import myloaders.MySameClassLoader;
49
50 //
51 // ClassLoader1 --> defines m1 --> no packages
52 // defines m2 --> packages p2
53 // defines m3 --> packages p3
54 //
55 // m1 can read m2
56 // package p2 in m2 is exported to m3
57 //
58 // class p1.c1 defined in m1 tries to access p2.c2 defined in m2
59 // Access denied since although m1 can read m2, p2 is exported only to m3.
60 //
61 public class Umod_ExpQualOther {
62
63 // Create a Layer over the boot layer.
64 // Define modules within this layer to test access between
65 // publically defined classes within packages of those modules.
66 public void createLayerOnBoot() throws Throwable {
67
68 // Define module: m1 (need to define m1 to establish the Layer successfully)
69 // Can read: java.base, m2, m3
70 // Packages: none
71 // Packages exported: none
72 ModuleDescriptor descriptor_m1 =
73 new ModuleDescriptor.Builder("m1")
74 .requires("java.base")
75 .requires("m2")
76 .requires("m3")
77 .build();
78
79 // Define module: m2
80 // Can read: java.base
81 // Packages: p2
82 // Packages exported: p2 is exported to m3
83 ModuleDescriptor descriptor_m2 =
84 new ModuleDescriptor.Builder("m2")
85 .requires("java.base")
86 .exports("p2", "m3")
87 .build();
88
89 // Define module: m3
90 // Can read: java.base
91 // Packages: p3
92 // Packages exported: none
93 ModuleDescriptor descriptor_m3 =
94 new ModuleDescriptor.Builder("m3")
95 .requires("java.base")
96 .build();
97
98 // Set up a ModuleFinder containing all modules for this layer.
99 ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2, descriptor_m3);
100
101 // Resolves "m1"
102 Configuration cf = Layer.boot()
103 .configuration()
104 .resolveRequires(finder, ModuleFinder.of(), Set.of("m1"));
105
106 // map each module to differing class loaders for this test
107 Map<String, ClassLoader> map = new HashMap<>();
108 map.put("m1", MySameClassLoader.loader1);
109 map.put("m2", MySameClassLoader.loader1);
110 map.put("m3", MySameClassLoader.loader1);
111
112 // Create Layer that contains m1, m2 and m3
113 Layer layer = Layer.boot().defineModules(cf, map::get);
114
115 assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1);
116 assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1);
117 assertTrue(layer.findLoader("m3") == MySameClassLoader.loader1);
118 assertTrue(layer.findLoader("java.base") == null);
119
120 // now use the same loader to load class p1.c1
121 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");
122 try {
123 p1_c1_class.newInstance();
124 throw new RuntimeException("Failed to get IAE (p2 in m2 is exported to m3, not unqualifiedly to everyone)");
125 } catch (IllegalAccessError e) {
126 System.out.println(e.getMessage());
127 if (!e.getMessage().contains("does not export")) {
128 throw new RuntimeException("Wrong message: " + e.getMessage());
129 }
130 }
131 }
132
133 public static void main(String args[]) throws Throwable {
134 Umod_ExpQualOther test = new Umod_ExpQualOther();
135 test.createLayerOnBoot();
136 }
137 }