| /* |
| * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @summary class p1.c1 defined in m1x tries to access p2.c2 defined in unnamed module. |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * @modules java.base/jdk.internal.module |
| * @compile myloaders/MySameClassLoader.java |
| * @compile p2/c2.java |
| * @compile p1/c1.java |
| * @compile p1/c1ReadEdge.java |
| * @compile p1/c1Loose.java |
| * @run main/othervm -Xbootclasspath/a:. Umod |
| */ |
| |
| import static jdk.test.lib.Asserts.*; |
| |
| import java.lang.module.Configuration; |
| import java.lang.module.ModuleDescriptor; |
| import java.lang.module.ModuleFinder; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| import myloaders.MySameClassLoader; |
| |
| // |
| // ClassLoader1 --> defines m1x --> packages p1 |
| // package p1 in m1x is exported unqualifiedly |
| // |
| // class p1.c1 defined in m1x tries to access p2.c2 defined in |
| // in unnamed module. |
| // |
| // Three access attempts occur in this test: |
| // 1. The first access is not allowed because a strict module |
| // cannot read an unnamed module. |
| // 2. In this scenario a strict module establishes readability |
| // to the particular unnamed module it is trying to access. |
| // Access is allowed. |
| // 3. Module m1x in the test_looseModuleLayer() method |
| // is transitioned to a loose module, access |
| // to all unnamed modules is allowed. |
| // |
| public class Umod { |
| |
| // Create layers over the boot layer to test different |
| // accessing scenarios of a named module to an unnamed module. |
| |
| // Module m1x is a strict module and has not established |
| // readability to an unnamed module that p2.c2 is defined in. |
| public void test_strictModuleLayer() throws Throwable { |
| |
| // Define module: m1x |
| // Can read: java.base |
| // Packages: p1 |
| // Packages exported: p1 is exported unqualifiedly |
| ModuleDescriptor descriptor_m1x = |
| ModuleDescriptor.newModule("m1x") |
| .requires("java.base") |
| .exports("p1") |
| .build(); |
| |
| // Set up a ModuleFinder containing all modules for this layer. |
| ModuleFinder finder = ModuleLibrary.of(descriptor_m1x); |
| |
| // Resolves "m1x" |
| Configuration cf = ModuleLayer.boot() |
| .configuration() |
| .resolve(finder, ModuleFinder.of(), Set.of("m1x")); |
| |
| // map module m1x to class loader. |
| // class c2 will be loaded in an unnamed module/loader. |
| MySameClassLoader loader = new MySameClassLoader(); |
| Map<String, ClassLoader> map = new HashMap<>(); |
| map.put("m1x", loader); |
| |
| // Create layer that contains m1x |
| ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); |
| |
| assertTrue(layer.findLoader("m1x") == loader); |
| assertTrue(layer.findLoader("java.base") == null); |
| |
| // now use the same loader to load class p1.c1 |
| Class p1_c1_class = loader.loadClass("p1.c1"); |
| |
| // Attempt access |
| try { |
| p1_c1_class.newInstance(); |
| throw new RuntimeException("Test Failed, strict module m1x, type p1.c1, should not be able " + |
| "to access public type p2.c2 defined in unnamed module"); |
| } catch (IllegalAccessError e) { |
| } |
| } |
| |
| // Module m1x is a strict module and has established |
| // readability to an unnamed module that p2.c2 is defined in. |
| public void test_strictModuleUnnamedReadableLayer() throws Throwable { |
| |
| // Define module: m1x |
| // Can read: java.base |
| // Packages: p1 |
| // Packages exported: p1 is exported unqualifiedly |
| ModuleDescriptor descriptor_m1x = |
| ModuleDescriptor.newModule("m1x") |
| .requires("java.base") |
| .exports("p1") |
| .build(); |
| |
| // Set up a ModuleFinder containing all modules for this layer. |
| ModuleFinder finder = ModuleLibrary.of(descriptor_m1x); |
| |
| // Resolves "m1x" |
| Configuration cf = ModuleLayer.boot() |
| .configuration() |
| .resolve(finder, ModuleFinder.of(), Set.of("m1x")); |
| |
| MySameClassLoader loader = new MySameClassLoader(); |
| // map module m1x to class loader. |
| // class c2 will be loaded in an unnamed module/loader. |
| Map<String, ClassLoader> map = new HashMap<>(); |
| map.put("m1x", loader); |
| |
| // Create layer that contains m1x |
| ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); |
| |
| assertTrue(layer.findLoader("m1x") == loader); |
| assertTrue(layer.findLoader("java.base") == null); |
| |
| // now use the same loader to load class p1.c1ReadEdge |
| Class p1_c1_class = loader.loadClass("p1.c1ReadEdge"); |
| |
| try { |
| // Read edge between m1x and the unnamed module that loads p2.c2 is established in |
| // c1ReadEdge's ctor before attempting access. |
| p1_c1_class.newInstance(); |
| } catch (IllegalAccessError e) { |
| throw new RuntimeException("Test Failed, strict module m1x, type p1.c1ReadEdge, should be able to acccess public type " + |
| "p2.c2 defined in unnamed module: " + e.getMessage()); |
| } |
| } |
| |
| // Module m1x is a loose module and thus can read all unnamed modules. |
| public void test_looseModuleLayer() throws Throwable { |
| |
| // Define module: m1x |
| // Can read: java.base |
| // Packages: p1 |
| // Packages exported: p1 is exported unqualifiedly |
| ModuleDescriptor descriptor_m1x = |
| ModuleDescriptor.newModule("m1x") |
| .requires("java.base") |
| .exports("p1") |
| .build(); |
| |
| // Set up a ModuleFinder containing all modules for this layer. |
| ModuleFinder finder = ModuleLibrary.of(descriptor_m1x); |
| |
| // Resolves "m1x" |
| Configuration cf = ModuleLayer.boot() |
| .configuration() |
| .resolve(finder, ModuleFinder.of(), Set.of("m1x")); |
| |
| MySameClassLoader loader = new MySameClassLoader(); |
| // map module m1x to class loader. |
| // class c2 will be loaded in an unnamed module/loader. |
| Map<String, ClassLoader> map = new HashMap<>(); |
| map.put("m1x", loader); |
| |
| // Create layer that contains m1x |
| ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); |
| |
| assertTrue(layer.findLoader("m1x") == loader); |
| assertTrue(layer.findLoader("java.base") == null); |
| |
| // now use the same loader to load class p1.c1Loose |
| Class p1_c1_class = loader.loadClass("p1.c1Loose"); |
| |
| // change m1x to read all unnamed modules |
| Module m1x = layer.findModule("m1x").get(); |
| jdk.internal.module.Modules.addReadsAllUnnamed(m1x); |
| |
| try { |
| p1_c1_class.newInstance(); |
| } catch (IllegalAccessError e) { |
| throw new RuntimeException("Test Failed, strict module m1x, type p1.c1Loose, should be able to acccess public type " + |
| "p2.c2 defined in unnamed module: " + e.getMessage()); |
| } |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| Umod test = new Umod(); |
| test.test_strictModuleLayer(); // access denied |
| test.test_strictModuleUnnamedReadableLayer(); // access allowed |
| test.test_looseModuleLayer(); // access allowed |
| } |
| } |