jdk

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/*
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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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 *
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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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 *
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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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 *
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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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 *
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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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 * questions.
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 */
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/*
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 * @test
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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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 * @library /test/lib
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 * @compile myloaders/MySameClassLoader.java
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 * @compile p2/c2.java
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 * @compile p1/c1.java
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 * @run main/othervm -Xbootclasspath/a:. Umod_PkgNotExp
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 */
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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 java.util.Map;
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import java.util.Set;
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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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//
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// m1x can read m2x
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// package p2 in m2x is not exported
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//
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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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//
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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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        // Define module:     m1x
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        // Can read:          java.base, m2x
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        // Packages:          none
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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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                        .requires("m2x")
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                        .build();
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        // Define module:     m2x
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        // Can read:          java.base
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        // Packages:          p2
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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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                        .build();
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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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        // Resolves "m1x"
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        Configuration cf = ModuleLayer.boot()
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                .configuration()
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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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        try {
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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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          }
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        }
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    }
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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();
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    }
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}
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