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, AND package p2 in module2 is 29 * exported unqualifiedly, then class p1.c1 in m1 can 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 ExpUnqual 36 * @run main/othervm -Xbootclasspath/a:. ExpUnqual 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 public class ExpUnqual { 51 52 // Create a Layer over the boot layer. 53 // Define modules within this layer to test access between 54 // publically defined classes within packages of those modules. 55 public void createLayerOnBoot() throws Throwable { 56 57 // Define module: m1 58 // Can read: java.base, m2 59 // Packages: p1 60 // Packages exported: p1 is exported unqualifiedly 61 ModuleDescriptor descriptor_m1 = 62 new ModuleDescriptor.Builder("m1") 63 .requires("java.base") 64 .requires("m2") 65 .exports("p1") 66 .build(); 67 68 // Define module: m2 69 // Can read: java.base 70 // Packages: p2 71 // Packages exported: p2 is exported unqualifiedly 72 ModuleDescriptor descriptor_m2 = 73 new ModuleDescriptor.Builder("m2") 74 .requires("java.base") 75 .exports("p2") 76 .build(); 77 78 // Set up a ModuleFinder containing all modules for this layer. 79 ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2); 80 81 // Resolves "m1" 82 Configuration cf = Layer.boot() 83 .configuration() 84 .resolveRequires(finder, ModuleFinder.of(), Set.of("m1")); 85 86 // map each module to the same class loader for this test 87 Map<String, ClassLoader> map = new HashMap<>(); 88 map.put("m1", MySameClassLoader.loader1); 89 map.put("m2", MySameClassLoader.loader1); 90 91 // Create Layer that contains m1 & m2 92 Layer layer = Layer.boot().defineModules(cf, map::get); 93 94 assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1); 95 assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1); 96 97 // now use the same loader to load class p1.c1 98 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1"); 99 try { 100 p1_c1_class.newInstance(); 101 } catch (IllegalAccessError e) { 102 throw new RuntimeException("Test Failed, an IAE should not be thrown since p2 is exported unqualifiedly."); 103 } 104 } 105 106 public static void main(String args[]) throws Throwable { 107 ExpUnqual test = new ExpUnqual(); 108 test.createLayerOnBoot(); 109 } 110 }