UmodUpkg_NotExp.java revision 12723:afedee84773e 
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25
26/*
27 * @test
28 * @summary Test if package p6 in module m2x is not exported, then class c5
29 *          in an unnamed module can not access p6.c2 in module m2x.
30 * @modules java.base/jdk.internal.misc
31 * @library /test/lib
32 * @compile myloaders/MySameClassLoader.java
33 * @compile p6/c6.java
34 * @compile c5.java
35 * @run main/othervm -Xbootclasspath/a:. UmodUpkg_NotExp
36 */
37
38import static jdk.test.lib.Asserts.*;
39
40import java.lang.module.Configuration;
41import java.lang.module.ModuleDescriptor;
42import java.lang.module.ModuleFinder;
43import java.util.HashMap;
44import java.util.Map;
45import java.util.Set;
46import myloaders.MySameClassLoader;
47
48// ClassLoader1 --> defines m1x --> no packages
49//                  defines m2x --> packages p6
50//
51// m1x can read m2x
52// package p6 in m2x is not exported
53//
54// class c5 defined in an unnamed module tries to access p6.c2 defined in m2x
55// Access denied since p6 is not exported.
56//
57public class UmodUpkg_NotExp {
58
59    // Create a layer over the boot layer.
60    // Define modules within this layer to test access between
61    // publically defined classes within packages of those modules.
62    public void createLayerOnBoot() throws Throwable {
63
64        // Define module:     m1x
65        // Can read:          java.base, m2x
66        // Packages:          none
67        // Packages exported: none
68        ModuleDescriptor descriptor_m1x =
69                ModuleDescriptor.newModule("m1x")
70                        .requires("java.base")
71                        .requires("m2x")
72                        .build();
73
74        // Define module:     m2x
75        // Can read:          java.base
76        // Packages:          p6
77        // Packages exported: none
78        ModuleDescriptor descriptor_m2x =
79                ModuleDescriptor.newModule("m2x")
80                        .requires("java.base")
81                        .packages(Set.of("p6"))
82                        .build();
83
84        // Set up a ModuleFinder containing all modules for this layer.
85        ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x);
86
87        // Resolves "m1x"
88        Configuration cf = ModuleLayer.boot()
89                .configuration()
90                .resolve(finder, ModuleFinder.of(), Set.of("m1x"));
91
92        // map each module to the same class loader for this test
93        Map<String, ClassLoader> map = new HashMap<>();
94        map.put("m1x", MySameClassLoader.loader1);
95        map.put("m2x", MySameClassLoader.loader1);
96
97        // Create layer that contains m1x and m2x
98        ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);
99
100        assertTrue(layer.findLoader("m1x") == MySameClassLoader.loader1);
101        assertTrue(layer.findLoader("m2x") == MySameClassLoader.loader1);
102        assertTrue(layer.findLoader("java.base") == null);
103
104        // now use the same loader to load class c5
105        Class c5_class = MySameClassLoader.loader1.loadClass("c5");
106        try {
107            c5_class.newInstance();
108            throw new RuntimeException("Failed to get IAE (p6 in m2x is not exported)");
109        } catch (IllegalAccessError e) {
110          System.out.println(e.getMessage());
111          if (!e.getMessage().contains("does not export")) {
112              throw new RuntimeException("Wrong message: " + e.getMessage());
113          }
114        }
115    }
116
117    public static void main(String args[]) throws Throwable {
118      UmodUpkg_NotExp test = new UmodUpkg_NotExp();
119      test.createLayerOnBoot();
120    }
121}
122