AccessCheckWorks.java revision 10420:c558850fac57 
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.
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
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @library /testlibrary /test/lib /compiler/whitebox ..
27 * @compile p2/c2.java
28 * @compile p1/c1.java
29 * @build sun.hotspot.WhiteBox
30 * @compile/module=java.base java/lang/reflect/ModuleHelper.java
31 * @run main ClassFileInstaller sun.hotspot.WhiteBox
32 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI AccessCheckWorks
34 */
35
36import java.lang.reflect.Module;
37import static jdk.test.lib.Asserts.*;
38
39public class AccessCheckWorks {
40
41    // Check that a class in a package in module1 can successfully access a
42    // class in module2 when module1 can read module2 and the class's package
43    // has been exported.
44    public static void main(String args[]) throws Throwable {
45        Object m1, m2;
46
47        // Get the java.lang.reflect.Module object for module java.base.
48        Class jlObject = Class.forName("java.lang.Object");
49        Object jlObject_jlrM = jlObject.getModule();
50        assertNotNull(jlObject_jlrM, "jlrModule object of java.lang.Object should not be null");
51
52        // Get the class loader for AccessCheckWorks and assume it's also used to
53        // load classes p1.c1 and p2.c2.
54        ClassLoader this_cldr = AccessCheckWorks.class.getClassLoader();
55
56        // Define a module for p1.
57        m1 = ModuleHelper.ModuleObject("module1", this_cldr, new String[] { "p1" });
58        assertNotNull(m1, "Module should not be null");
59        ModuleHelper.DefineModule(m1, "9.0", "m1/here", new String[] { "p1" });
60        ModuleHelper.AddReadsModule(m1, jlObject_jlrM);
61
62        // Define a module for p2.
63        m2 = ModuleHelper.ModuleObject("module2", this_cldr, new String[] { "p2" });
64        assertNotNull(m2, "Module should not be null");
65        ModuleHelper.DefineModule(m2, "9.0", "m2/there", new String[] { "p2" });
66        ModuleHelper.AddReadsModule(m2, jlObject_jlrM);
67
68        // Make package p1 in m1 visible to everyone.
69        ModuleHelper.AddModuleExportsToAll(m1, "p1");
70
71        // p1.c1's ctor tries to call a method in p2.c2.  This should work because
72        // p1's module can read p2's module and p2 is exported to p1's module.
73        ModuleHelper.AddReadsModule(m1, m2);
74        ModuleHelper.AddModuleExports(m2, "p2", m1);
75        Class p1_c1_class = Class.forName("p1.c1");
76        p1_c1_class.newInstance();
77    }
78}
79
80