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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* @summary Test if package p2 in module m2x is not exported, then class p1.c1
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* in an unnamed module can not access p2.c2 in module m2x.
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* @modules java.base/jdk.internal.misc
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* @compile myloaders/MySameClassLoader.java
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* @run main/othervm -Xbootclasspath/a:. Umod_PkgNotExp
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import static jdk.test.lib.Asserts.*;
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import java.lang.module.Configuration;
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import java.lang.module.ModuleDescriptor;
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import java.lang.module.ModuleFinder;
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import java.util.HashMap;
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import myloaders.MySameClassLoader;
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// ClassLoader1 --> defines m1x --> no packages
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// defines m2x --> packages p2
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// package p2 in m2x is not exported
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// class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2x
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// Access denied since p2 is not exported.
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public class Umod_PkgNotExp {
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// Create a layer over the boot layer.
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// Define modules within this layer to test access between
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// publically defined classes within packages of those modules.
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public void createLayerOnBoot() throws Throwable {
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// Can read: java.base, m2x
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// Packages exported: none
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ModuleDescriptor descriptor_m1x =
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ModuleDescriptor.newModule("m1x")
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.requires("java.base")
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// Can read: java.base
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// Packages exported: none
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ModuleDescriptor descriptor_m2x =
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ModuleDescriptor.newModule("m2x")
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.requires("java.base")
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.packages(Set.of("p2"))
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// Set up a ModuleFinder containing all modules for this layer.
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ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x);
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Configuration cf = ModuleLayer.boot()
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.resolve(finder, ModuleFinder.of(), Set.of("m1x"));
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// map each module to the same class loader for this test
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Map<String, ClassLoader> map = new HashMap<>();
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map.put("m1x", MySameClassLoader.loader1);
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map.put("m2x", MySameClassLoader.loader1);
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// Create layer that contains m1x and m2x
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ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);
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assertTrue(layer.findLoader("m1x") == MySameClassLoader.loader1);
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assertTrue(layer.findLoader("m2x") == MySameClassLoader.loader1);
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assertTrue(layer.findLoader("java.base") == null);
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// now use the same loader to load class p1.c1
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Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");
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p1_c1_class.newInstance();
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throw new RuntimeException("Failed to get IAE (p2 in m2x is not exported)");
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} catch (IllegalAccessError e) {
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System.out.println(e.getMessage());
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if (!e.getMessage().contains("does not export")) {
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throw new RuntimeException("Wrong message: " + e.getMessage());
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public static void main(String args[]) throws Throwable {
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Umod_PkgNotExp test = new Umod_PkgNotExp();
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test.createLayerOnBoot();