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/*
* Copyright (c) 2016, 2018, 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.
*
* 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 Test that if module m1x can not read module m2x, then class p1.c1
* in module m1x can not access p2.c2 in module m2x.
* @modules java.base/jdk.internal.misc
* @library /test/lib
* @compile myloaders/MyDiffClassLoader.java
* @compile p2/c2.java
* @compile p1/c1.java
* @run main/othervm -Xbootclasspath/a:. DiffCL_CheckRead
*/
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.MyDiffClassLoader;
//
// ClassLoader1 --> defines m1x --> packages p1
// ClassLoader2 --> defines m2x --> packages p2
// defines m3x --> packages p3
//
// m1x can not read m2x
// package p2 in m2x is exported to m1x
//
// class p1.c1 defined in m1x tries to access p2.c2 defined in m2x.
// Access denied since m1x can not read m2x.
//
public class DiffCL_CheckRead {
// Create a layer over the boot layer.
// Define modules within this layer to test access between
// publicly defined classes within packages of those modules.
public void createLayerOnBoot() throws Throwable {
// Define module: m1x
// Can read: java.base, m3x
// Packages: p1
// Packages exported: p1 is exported unqualifiedly
ModuleDescriptor descriptor_m1x =
ModuleDescriptor.newModule("m1x")
.requires("java.base")
.requires("m3x")
.exports("p1")
.build();
// Define module: m2x
// Can read: java.base
// Packages: p2
// Packages exported: p2 is exported to m1x
ModuleDescriptor descriptor_m2x =
ModuleDescriptor.newModule("m2x")
.requires("java.base")
.exports("p2", Set.of("m1x"))
.build();
// Define module: m3x
// Can read: java.base, m2x
// Packages: p3
// Packages exported: none
ModuleDescriptor descriptor_m3x =
ModuleDescriptor.newModule("m3x")
.requires("java.base")
.requires("m2x")
.packages(Set.of("p3"))
.build();
// Set up a ModuleFinder containing all modules for this layer.
ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x, descriptor_m3x);
// Resolves "m1x"
Configuration cf = ModuleLayer.boot()
.configuration()
.resolve(finder, ModuleFinder.of(), Set.of("m1x"));
// map each module to differing class loaders for this test
Map<String, ClassLoader> map = new HashMap<>();
map.put("m1x", MyDiffClassLoader.loader1);
map.put("m2x", MyDiffClassLoader.loader2);
map.put("m3x", MyDiffClassLoader.loader2);
// Create layer that contains m1x, m2x and m3x
ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);
assertTrue(layer.findLoader("m1x") == MyDiffClassLoader.loader1);
assertTrue(layer.findLoader("m2x") == MyDiffClassLoader.loader2);
assertTrue(layer.findLoader("m3x") == MyDiffClassLoader.loader2);
assertTrue(layer.findLoader("java.base") == null);
// now use the same loader to load class p1.c1
Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1");
try {
p1_c1_class.newInstance();
throw new RuntimeException("Failed to get IAE (p2 in m2x is exported to m1x but m2x is not readable from m1x)");
} catch (IllegalAccessError e) {
System.out.println(e.getMessage());
if (!e.getMessage().contains("cannot access")) {
throw new RuntimeException("Wrong message: " + e.getMessage());
}
}
}
public static void main(String args[]) throws Throwable {
DiffCL_CheckRead test = new DiffCL_CheckRead();
test.createLayerOnBoot();
}
}
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