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, but package p2 in m2 is not 29 * exported, then class p1.c1 in m1 can not read p2.c2 in m2. 30 * @modules java.base/jdk.internal.misc 31 * @library /testlibrary /test/lib 32 * @compile myloaders/MySameClassLoader.java 33 * @compile p2/c2.java 34 * @compile p1/c1.java 35 * @build PkgNotExp 36 * @run main/othervm -Xbootclasspath/a:. PkgNotExp 37 */ 38 39 import static jdk.test.lib.Asserts.*; 40 41 import java.lang.reflect.Layer; 42 import java.lang.module.Configuration; 43 import java.lang.module.ModuleDescriptor; 44 import java.lang.module.ModuleFinder; 45 import java.util.HashMap; 46 import java.util.Map; 47 import java.util.Set; 48 import myloaders.MySameClassLoader; 49 50 // 51 // ClassLoader1 --> defines m1 --> packages p1 52 // defines m2 --> packages p2 53 // 54 // m1 can read m2 55 // package p2 in m2 is not exported 56 // 57 // class p1.c1 defined in m1 tries to access p2.c2 defined in m2 58 // Access denied since p2 is not exported. 59 // 60 public class PkgNotExp { 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: m1 68 // Can read: java.base, m2 69 // Packages: p1 70 // Packages exported: p1 is exported unqualifiedly 71 ModuleDescriptor descriptor_m1 = 72 new ModuleDescriptor.Builder("m1") 73 .requires("java.base") 74 .requires("m2") 75 .exports("p1") 76 .build(); 77 78 // Define module: m2 79 // Can read: java.base 80 // Packages: p2 81 // Packages exported: none 82 ModuleDescriptor descriptor_m2 = 83 new ModuleDescriptor.Builder("m2") 84 .requires("java.base") 85 .conceals("p2") 86 .build(); 87 88 // Set up a ModuleFinder containing all modules for this layer. 89 ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2); 90 91 // Resolves "m1" 92 Configuration cf = Layer.boot() 93 .configuration() 94 .resolveRequires(finder, ModuleFinder.of(), Set.of("m1")); 95 96 // map each module to the same class loader for this test 97 Map<String, ClassLoader> map = new HashMap<>(); 98 map.put("m1", MySameClassLoader.loader1); 99 map.put("m2", MySameClassLoader.loader1); 100 101 // Create Layer that contains m1 and m2 102 Layer layer = Layer.boot().defineModules(cf, map::get); 103 104 assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1); 105 assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1); 106 107 // now use the same loader to load class p1.c1 108 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1"); 109 try { 110 p1_c1_class.newInstance(); 111 throw new RuntimeException("Failed to get IAE (p2 in m2 is not exported)"); 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 PkgNotExp test = new PkgNotExp(); 122 test.createLayerOnBoot(); 123 } 124 }