UmodUpkgDiffCL_ExpQualOther.java revision 12735: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 c5 defined in an unnamed module tries to access p6.c6 defined in m2x. 29 * Access is denied, since an unnamed module can read all modules but p6 in module 30 * m2x is exported specifically to module m1x, not to all modules. 31 * @modules java.base/jdk.internal.misc 32 * @library /test/lib 33 * @compile myloaders/MyDiffClassLoader.java 34 * @compile p6/c6.java 35 * @compile c5.java 36 * @run main/othervm -Xbootclasspath/a:. UmodUpkgDiffCL_ExpQualOther 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 p6 52// 53// m1x can read m2x 54// package p6 in m2x is not exported 55// 56// class c5 defined in an unnamed module tries to access p6.c6 defined in m2x 57// Access denied, an unnamed module can read all modules but p6 in module 58// m2x is exported specifically to module m1x not to all modules. 59// 60public class UmodUpkgDiffCL_ExpQualOther { 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: p6 80 // Packages exported: p6 exported to m1x 81 ModuleDescriptor descriptor_m2x = 82 ModuleDescriptor.newModule("m2x") 83 .requires("java.base") 84 .exports("p6", Set.of("m1x")) 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 // now use the same loader to load class c5 108 Class c5_class = MyDiffClassLoader.loader1.loadClass("c5"); 109 try { 110 c5_class.newInstance(); 111 throw new RuntimeException("Failed to get IAE (p6 in m2x is exported to m1x, not unqualifiedly"); 112 } catch (IllegalAccessError e) { 113 System.out.println(e.getMessage()); 114 if (!e.getMessage().contains("does not export")) { 115 throw new RuntimeException("Wrong message: " + e.getMessage()); 116 } 117 } 118 } 119 120 public static void main(String args[]) throws Throwable { 121 UmodUpkgDiffCL_ExpQualOther test = new UmodUpkgDiffCL_ExpQualOther(); 122 test.createLayerOnBoot(); 123 } 124} 125