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 module m1 can read module m2, AND package p2 in m2 is
29 * exported qualifiedly to m1, then class p1.c1 in m1 can read p2.c2 in m2.
30 * @modules java.base/jdk.internal.misc
31 * @library /test/lib
32 * @compile myloaders/MySameClassLoader.java
33 * @compile p2/c2.java
34 * @compile p1/c1.java
35 * @run main/othervm -Xbootclasspath/a:. ExpQualToM1
36 */
37
38 import static jdk.test.lib.Asserts.*;
39
40 import java.lang.reflect.Layer;
41 import java.lang.module.Configuration;
42 import java.lang.module.ModuleDescriptor;
43 import java.lang.module.ModuleFinder;
44 import java.util.HashMap;
45 import java.util.Map;
46 import java.util.Set;
47 import myloaders.MySameClassLoader;
48
49 public class ExpQualToM1 {
50
51 // Create a Layer over the boot layer.
52 // Define modules within this layer to test access between
53 // publically defined classes within packages of those modules.
54 public void createLayerOnBoot() throws Throwable {
55
56 // Define module: m1
57 // Can read: java.base, m2
58 // Packages: p1
59 // Packages exported: p1 is exported unqualifiedly
60 ModuleDescriptor descriptor_m1 =
61 new ModuleDescriptor.Builder("m1")
62 .requires("java.base")
63 .requires("m2")
64 .exports("p1")
65 .build();
66
67 // Define module: m2
68 // Can read: java.base
69 // Packages: p2
70 // Packages exported: p2 is exported qualifiedly to m1
71 ModuleDescriptor descriptor_m2 =
72 new ModuleDescriptor.Builder("m2")
73 .requires("java.base")
74 .exports("p2", "m1")
75 .build();
76
77 // Set up a ModuleFinder containing all modules for this layer.
78 ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2);
79
80 // Resolves "m1"
81 Configuration cf = Layer.boot()
82 .configuration()
83 .resolveRequires(finder, ModuleFinder.of(), Set.of("m1"));
84
85 // map each module to the same class loader for this test
86 Map<String, ClassLoader> map = new HashMap<>();
87 map.put("m1", MySameClassLoader.loader1);
88 map.put("m2", MySameClassLoader.loader1);
89
90 // Create Layer that contains m1 & m2
91 Layer layer = Layer.boot().defineModules(cf, map::get);
92
93 assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1);
94 assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1);
95
96 // now use the same loader to load class p1.c1
97 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");
98 try {
99 p1_c1_class.newInstance();
100 } catch (IllegalAccessError e) {
101 throw new RuntimeException("Test Failed, an IAE should not be thrown since p2 is exported qualifiedly to m1");
102 }
103 }
104
105 public static void main(String args[]) throws Throwable {
106 ExpQualToM1 test = new ExpQualToM1();
107 test.createLayerOnBoot();
108 }
109
110 }