| /* |
| * Copyright (c) 2016, 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 |
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| * 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 |
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| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
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| */ |
| |
| /* |
| * @test |
| * @summary class p3.c3 defined in module m1 tries to access c4 defined in an unnamed package |
| * and an unnamed module. |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib |
| * @compile myloaders/MyDiffClassLoader.java |
| * @compile c4.java |
| * @compile p3/c3.jcod |
| * @compile p3/c3ReadEdgeDiffLoader.jcod |
| * @run main/othervm -Xbootclasspath/a:. DiffCL_UmodUpkg |
| */ |
| |
| import static jdk.test.lib.Asserts.*; |
| |
| import java.lang.reflect.Layer; |
| 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.MyDiffClassLoader; |
| |
| // |
| // ClassLoader1 --> defines m1 --> packages p3 |
| // package p3 in m1 is exported unqualifiedly |
| // |
| // class p3.c3 defined in m1 tries to access c4 defined in |
| // in unnamed module. |
| // |
| // Two 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. |
| // |
| public class DiffCL_UmodUpkg { |
| |
| // Create Layers over the boot layer to test different |
| // accessing scenarios of a named module to an unnamed module. |
| |
| // Module m1 is a strict module and has not established |
| // readability to an unnamed module that c4 is defined in. |
| public void test_strictModuleLayer() throws Throwable { |
| |
| // Define module: m1 |
| // Can read: java.base |
| // Packages: p3 |
| // Packages exported: p3 is exported unqualifiedly |
| ModuleDescriptor descriptor_m1 = |
| ModuleDescriptor.module("m1") |
| .requires("java.base") |
| .exports("p3") |
| .build(); |
| |
| // Set up a ModuleFinder containing all modules for this layer. |
| ModuleFinder finder = ModuleLibrary.of(descriptor_m1); |
| |
| // Resolves "m1" |
| Configuration cf = Layer.boot() |
| .configuration() |
| .resolveRequires(finder, ModuleFinder.of(), Set.of("m1")); |
| |
| MyDiffClassLoader.loader1 = new MyDiffClassLoader(); |
| MyDiffClassLoader.loader2 = new MyDiffClassLoader(); |
| |
| // map module m1 to class loader. |
| // class c2 will be loaded in an unnamed module/loader2 |
| // to achieve differing class loaders. |
| Map<String, ClassLoader> map = new HashMap<>(); |
| map.put("m1", MyDiffClassLoader.loader1); |
| |
| // Create Layer that contains m1 |
| Layer layer = Layer.boot().defineModules(cf, map::get); |
| |
| assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1); |
| assertTrue(layer.findLoader("java.base") == null); |
| |
| // now use the same loader to load class p3.c3 |
| Class p3_c3_class = MyDiffClassLoader.loader1.loadClass("p3.c3"); |
| |
| // Attempt access |
| try { |
| p3_c3_class.newInstance(); |
| throw new RuntimeException("Test Failed, strict module m1 should not be able to access " + |
| "public type c4 defined in unnamed module"); |
| } catch (IllegalAccessError e) { |
| } |
| } |
| |
| // Module m1 is a strict module and has established |
| // readability to an unnamed module that c4 is defined in. |
| public void test_strictModuleUnnamedReadableLayer() throws Throwable { |
| |
| // Define module: m1 |
| // Can read: java.base |
| // Packages: p3 |
| // Packages exported: p3 is exported unqualifiedly |
| ModuleDescriptor descriptor_m1 = |
| ModuleDescriptor.module("m1") |
| .requires("java.base") |
| .exports("p3") |
| .build(); |
| |
| // Set up a ModuleFinder containing all modules for this layer. |
| ModuleFinder finder = ModuleLibrary.of(descriptor_m1); |
| |
| // Resolves "m1" |
| Configuration cf = Layer.boot() |
| .configuration() |
| .resolveRequires(finder, ModuleFinder.of(), Set.of("m1")); |
| |
| MyDiffClassLoader.loader1 = new MyDiffClassLoader(); |
| MyDiffClassLoader.loader2 = new MyDiffClassLoader(); |
| |
| // map module m1 to class loader. |
| // class c2 will be loaded in an unnamed module/loader2 |
| // to achieve differing class loaders. |
| Map<String, ClassLoader> map = new HashMap<>(); |
| map.put("m1", MyDiffClassLoader.loader1); |
| |
| // Create Layer that contains m1 |
| Layer layer = Layer.boot().defineModules(cf, map::get); |
| |
| assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1); |
| assertTrue(layer.findLoader("java.base") == null); |
| |
| // now use the same loader to load class p3.c3ReadEdgeDiffLoader |
| Class p3_c3_class = MyDiffClassLoader.loader1.loadClass("p3.c3ReadEdgeDiffLoader"); |
| |
| try { |
| // Read edge between m1 and the unnamed module that loads c4 is established in |
| // C3ReadEdgeDiffLoader's ctor before attempting access. |
| p3_c3_class.newInstance(); |
| } catch (IllegalAccessError e) { |
| throw new RuntimeException("Test Failed, module m1 has established readability to " + |
| "c4 loader's unnamed module, access should be allowed: " + e.getMessage()); |
| } |
| } |
| |
| public static void main(String args[]) throws Throwable { |
| DiffCL_UmodUpkg test = new DiffCL_UmodUpkg(); |
| test.test_strictModuleLayer(); // access denied |
| test.test_strictModuleUnnamedReadableLayer(); // access allowed |
| } |
| } |