hotspot/test/runtime/modules/AccessCheck/UmodDiffCL_ExpUnqual.java
author ctornqvi
Fri, 19 Aug 2016 10:06:30 -0400
changeset 40631 ed82623d7831
parent 38306 db8cc86cbae9
child 42307 cefc81dc1d52
permissions -rw-r--r--
8157957: ClassNotFoundException: jdk.test.lib.JDKToolFinder Reviewed-by: coleenp, gtriantafill, mseledtsov, iignatyev, dholmes, dsamersoff
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/*
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 * Copyright (c) 2016, 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.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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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 class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2.
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 *          Access allowed, an unnamed module can read all modules and p2 in module m2
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 *          which is exported unqualifiedly.
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 * @modules java.base/jdk.internal.misc
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 * @library /test/lib
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 * @compile myloaders/MyDiffClassLoader.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:. UmodDiffCL_ExpUnqual
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 */
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import static jdk.test.lib.Asserts.*;
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import java.lang.reflect.Layer;
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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.MyDiffClassLoader;
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//
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// ClassLoader1 --> defines m1 --> no packages
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// ClassLoader2 --> defines m2 --> packages p2
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//
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// m1 can read m2
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// package p2 in m2 is exported unqualifiedly.
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//
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// class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2
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// Access allowed, an unnamed module can read all modules and p2 in module
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//              m2 which is exported unqualifiedly.
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//
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public class UmodDiffCL_ExpUnqual {
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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:     m1
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        // Can read:          java.base, m2
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        // Packages:          none
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        // Packages exported: none
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        ModuleDescriptor descriptor_m1 =
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                new ModuleDescriptor.Builder("m1")
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                        .requires("java.base")
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                        .requires("m2")
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                        .build();
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        // Define module:     m2
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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_m2 =
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                new ModuleDescriptor.Builder("m2")
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                        .requires("java.base")
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                        .exports("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_m1, descriptor_m2);
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        // Resolves "m1"
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        Configuration cf = Layer.boot()
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                .configuration()
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                .resolveRequires(finder, ModuleFinder.of(), Set.of("m1"));
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        // map each module to differing class loaders for this test
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        Map<String, ClassLoader> map = new HashMap<>();
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        map.put("m1", MyDiffClassLoader.loader1);
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        map.put("m2", MyDiffClassLoader.loader2);
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        // Create Layer that contains m1 & m2
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        Layer layer = Layer.boot().defineModules(cf, map::get);
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        assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1);
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        assertTrue(layer.findLoader("m2") == MyDiffClassLoader.loader2);
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        assertTrue(layer.findLoader("java.base") == null);
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        // NOTE: module m1 does not define a package named p1.
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        //       p1 will be loaded in an unnamed module.
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        Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1");
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        try {
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            p1_c1_class.newInstance();
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        } catch (IllegalAccessError e) {
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            throw new RuntimeException("Test Failed, p1.c1 defined in unnamed module can access p2.c2 in module m2");
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        }
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    }
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    public static void main(String args[]) throws Throwable {
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      UmodDiffCL_ExpUnqual test = new UmodDiffCL_ExpUnqual();
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      test.createLayerOnBoot();
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    }
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}