ModuleNonBuiltinCLMain.java revision 12735:afedee84773e
1121326Sharti/* 2121326Sharti * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. 3121326Sharti * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4121326Sharti * 5121326Sharti * This code is free software; you can redistribute it and/or modify it 6121326Sharti * under the terms of the GNU General Public License version 2 only, as 7121326Sharti * published by the Free Software Foundation. Oracle designates this 8121326Sharti * particular file as subject to the "Classpath" exception as provided 9121326Sharti * by Oracle in the LICENSE file that accompanied this code. 10121326Sharti * 11121326Sharti * This code is distributed in the hope that it will be useful, but WITHOUT 12121326Sharti * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13121326Sharti * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14121326Sharti * version 2 for more details (a copy is included in the LICENSE file that 15121326Sharti * accompanied this code). 16121326Sharti * 17121326Sharti * You should have received a copy of the GNU General Public License version 18121326Sharti * 2 along with this work; if not, write to the Free Software Foundation, 19121326Sharti * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20121326Sharti * 21121326Sharti * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22121326Sharti * or visit www.oracle.com if you need additional information or have any 23121326Sharti * questions. 24121326Sharti */ 25121326Sharti 26121326Shartiimport static jdk.test.lib.Asserts.*; 27121326Sharti 28121326Shartiimport java.lang.module.Configuration; 29121326Shartiimport java.lang.module.ModuleDescriptor; 30121326Shartiimport java.lang.module.ModuleFinder; 31121326Shartiimport java.util.HashMap; 32121326Shartiimport java.util.HashSet; 33121326Shartiimport java.util.Map; 34121326Shartiimport java.util.Set; 35121326Sharti 36121326Sharti// 37121326Sharti// ClassLoader1 --> defines m1x --> packages p1 38121326Sharti// ClassLoader2 --> defines m2x --> packages p2 39121326Sharti// Java System Class Loader --> defines m3x --> packages p3 40121326Sharti// 41121326Sharti// m1x can read m2x 42121326Sharti// package p2 in m2x is exported to m1x and m3x 43121326Sharti// 44121326Sharti// class p1.c1 defined in m1x tries to access p2.c2 defined in m2x 45121326Sharti// Access allowed since m1x can read m2x and package p2 is exported to m1x. 46121326Sharti// 47121326Shartipublic class ModuleNonBuiltinCLMain { 48121326Sharti 49121326Sharti // Create a layer over the boot layer. 50121326Sharti // Define modules within this layer to test access between 51121326Sharti // publically defined classes within packages of those modules. 52121326Sharti public void createLayerOnBoot() throws Throwable { 53121326Sharti 54121326Sharti // Define module: m1x 55121326Sharti // Can read: java.base, m2x 56121326Sharti // Packages: p1 57121326Sharti // Packages exported: p1 is exported to unqualifiedly 58121326Sharti ModuleDescriptor descriptor_m1x = 59121326Sharti ModuleDescriptor.newModule("m1x") 60121326Sharti .requires("java.base") 61121326Sharti .requires("m2x") 62121326Sharti .exports("p1") 63121326Sharti .build(); 64121326Sharti 65121326Sharti // Define module: m2x 66121326Sharti // Can read: java.base, m3x 67121326Sharti // Packages: p2 68121326Sharti // Packages exported: package p2 is exported to m1x and m3x 69121326Sharti Set<String> targets = new HashSet<>(); 70121326Sharti targets.add("m1x"); 71121326Sharti targets.add("m3x"); 72121326Sharti ModuleDescriptor descriptor_m2x = 73121326Sharti ModuleDescriptor.newModule("m2x") 74121326Sharti .requires("java.base") 75121326Sharti .requires("m3x") 76121326Sharti .exports("p2", targets) 77121326Sharti .build(); 78121326Sharti 79121326Sharti // Define module: m3x 80121326Sharti // Can read: java.base 81121326Sharti // Packages: p3 82121326Sharti // Packages exported: none 83121326Sharti ModuleDescriptor descriptor_m3x = 84121326Sharti ModuleDescriptor.newModule("m3x") 85121326Sharti .requires("java.base") 86121326Sharti .build(); 87121326Sharti 88121326Sharti // Set up a ModuleFinder containing all modules for this layer. 89121326Sharti ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x, descriptor_m3x); 90121326Sharti 91121326Sharti // Resolves "m1x" 92121326Sharti Configuration cf = ModuleLayer.boot() 93121326Sharti .configuration() 94121326Sharti .resolve(finder, ModuleFinder.of(), Set.of("m1x")); 95121326Sharti 96121326Sharti // map each module to differing user defined class loaders for this test 97121326Sharti Map<String, ClassLoader> map = new HashMap<>(); 98121326Sharti Loader1 cl1 = new Loader1(); 99121326Sharti Loader2 cl2 = new Loader2(); 100121326Sharti ClassLoader cl3 = ClassLoader.getSystemClassLoader(); 101121326Sharti map.put("m1x", cl1); 102121326Sharti map.put("m2x", cl2); 103121326Sharti map.put("m3x", cl3); 104121326Sharti 105121326Sharti // Create layer that contains m1x & m2x 106121326Sharti ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); 107121326Sharti assertTrue(layer.findLoader("m1x") == cl1); 108121326Sharti assertTrue(layer.findLoader("m2x") == cl2); 109121326Sharti assertTrue(layer.findLoader("m3x") == cl3); 110121326Sharti assertTrue(layer.findLoader("java.base") == null); 111121326Sharti 112121326Sharti // now use the same loader to load class p1.c1 113121326Sharti Class p1_c1_class = cl1.loadClass("p1.c1"); 114121326Sharti try { 115121326Sharti p1_c1_class.newInstance(); 116121326Sharti } catch (IllegalAccessError e) { 117121326Sharti throw new RuntimeException("Test Failed, an IAE should not be thrown since p2 is exported qualifiedly to m1x"); 118121326Sharti } 119121326Sharti } 120121326Sharti 121121326Sharti public static void main(String args[]) throws Throwable { 122121326Sharti ModuleNonBuiltinCLMain test = new ModuleNonBuiltinCLMain(); 123121326Sharti test.createLayerOnBoot(); 124121326Sharti } 125121326Sharti 126121326Sharti static class Loader1 extends ClassLoader { } 127121326Sharti static class Loader2 extends ClassLoader { } 128121326Sharti} 129121326Sharti