1 /* 2 * Copyright (c) 2016, 2018, 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 * @summary class c5 in an unnamed module can read module m2x, but package p6 in module m2x is not exported. 27 * Access denied since even though unnamed module can read all modules, p6 in module m2x is not exported at all. 28 * @modules java.base/jdk.internal.misc 29 * @library /test/lib 30 * @compile myloaders/MyDiffClassLoader.java 31 * @compile p6/c6.java 32 * @compile c5.java 33 * @run main/othervm -Xbootclasspath/a:. UmodUpkgDiffCL_NotExp 34 */ 35 36 import static jdk.test.lib.Asserts.*; 37 38 import java.lang.module.Configuration; 39 import java.lang.module.ModuleDescriptor; 40 import java.lang.module.ModuleFinder; 41 import java.util.HashMap; 42 import java.util.Map; 43 import java.util.Set; 44 import myloaders.MyDiffClassLoader; 45 46 // 47 // ClassLoader1 --> defines m1x --> no packages 48 // ClassLoader2 --> defines m2x --> packages p6 49 // 50 // m1x can read m2x 51 // package p6 in m2x is not exported 52 // 53 // class c5 defined in unnamed module tries to access p6.c6 defined in m2x 54 // Access denied since even though unnamed module can read all modules, p6 55 // in module m2x is not exported at all. 56 // 57 public class UmodUpkgDiffCL_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 differing class loaders for this test 93 Map<String, ClassLoader> map = new HashMap<>(); 94 map.put("m1x", MyDiffClassLoader.loader1); 95 map.put("m2x", MyDiffClassLoader.loader2); 96 97 // Create layer that contains m1x & m2x 98 ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); 99 100 assertTrue(layer.findLoader("m1x") == MyDiffClassLoader.loader1); 101 assertTrue(layer.findLoader("m2x") == MyDiffClassLoader.loader2); 102 assertTrue(layer.findLoader("java.base") == null); 103 104 // now use the same loader to load class c5 105 // NOTE: module m1x does not define any packages. 106 // c5 will be loaded in an unnamed module. 107 Class c5_class = MyDiffClassLoader.loader1.loadClass("c5"); 108 try { 109 c5_class.newInstance(); 110 throw new RuntimeException("Failed to get IAE (p6 in m2x is not exported to " + 111 "an unnamed module that c5 is defined within)"); 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_NotExp test = new UmodUpkgDiffCL_NotExp(); 122 test.createLayerOnBoot(); 123 } 124 }