/*
* Copyright ( c ) 2015 , 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
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*/
import java.lang.module.Configuration;
import java.lang.module.ModuleFinder;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import jdk.test.lib.compiler.CompilerUtils;
import static jdk.test.lib.process.ProcessTools.executeTestJava;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import static org.testng.Assert .*;
/**
* @ test
* @ library / test / lib
* @ modules jdk . compiler
* @ build ProxyTest jdk . test . lib . process . ProcessTools
* jdk . test . lib . compiler . CompilerUtils
* @ run testng ProxyLayerTest
* @ summary Test proxies to implement interfaces in a layer
*/
public class ProxyLayerTest {
private static final String TEST_SRC = System.getProperty("test.src" );
private static final String TEST_CLASSES = System.getProperty("test.classes" );
private static final Path SRC_DIR = Paths.get(TEST_SRC, "src" );
private static final Path MODS_DIR = Paths.get("mods" );
private static final Path CPATH_DIR = Paths.get(TEST_CLASSES);
// the names of the modules in this test
private static String[] modules = new String[] {"m1" , "m2" , "m3" };
/**
* Compiles all modules used by the test
*/
@BeforeTest
public void compileAll() throws Exception {
for (String mn : modules) {
Path msrc = SRC_DIR.resolve(mn);
assertTrue(CompilerUtils.compile(msrc, MODS_DIR, "--module-source-path" , SRC_DIR.toString()));
}
}
/**
* Test proxy implementing interfaces in a layer defined in
* an unnamed module
*/
@Test
public void testProxyInUnnamed() throws Exception {
ModuleFinder finder = ModuleFinder.of(MODS_DIR);
ModuleLayer bootLayer = ModuleLayer.boot();
Configuration cf = bootLayer
.configuration()
.resolveAndBind(ModuleFinder.of(), finder, Arrays.asList(modules));
ClassLoader scl = ClassLoader.getSystemClassLoader();
ModuleLayer layer = bootLayer.defineModulesWithOneLoader(cf, scl);
ClassLoader loader = layer.findLoader("m1" );
assertTrue(layer.findModule("m1" ).isPresent());
assertTrue(layer.findModule("m2" ).isPresent());
assertTrue(layer.findModule("m3" ).isPresent());
Class <?>[] interfaces = new Class <?>[] {
Class .forName("p.one.I" , false , loader),
Class .forName("p.two.A" , false , loader),
Class .forName("p.three.P" , false , loader),
};
Object o = Proxy.newProxyInstance(loader, interfaces, handler);
Class <?> proxyClass = o.getClass();
Package pkg = proxyClass.getPackage();
assertTrue(proxyClass.getModule().isNamed());
assertTrue(pkg.isSealed());
assertTrue(proxyClass.getModule().isExported(pkg.getName()));
assertEquals(proxyClass.getModule().getLayer(), null );
}
/**
* Test proxy implementing interfaces in a Layer and defined in a
* dynamic module
*/
@Test
public void testProxyInDynamicModule() throws Exception {
ModuleFinder finder = ModuleFinder.of(MODS_DIR);
ModuleLayer bootLayer = ModuleLayer.boot();
Configuration cf = bootLayer
.configuration()
.resolveAndBind(ModuleFinder.of(), finder, Arrays.asList(modules));
ClassLoader scl = ClassLoader.getSystemClassLoader();
ModuleLayer layer = bootLayer.defineModulesWithOneLoader(cf, scl);
ClassLoader loader = layer.findLoader("m1" );
assertTrue(layer.findModule("m1" ).isPresent());
assertTrue(layer.findModule("m2" ).isPresent());
assertTrue(layer.findModule("m3" ).isPresent());
Class <?>[] interfaces = new Class <?>[] {
Class .forName("p.one.internal.J" , false , loader),
};
Object o = Proxy.newProxyInstance(loader, interfaces, handler);
Class <?> proxyClass = o.getClass();
Package pkg = proxyClass.getPackage();
assertTrue(proxyClass.getModule().isNamed());
assertTrue(pkg.isSealed());
assertFalse(proxyClass.getModule().isExported(pkg.getName()));
assertEquals(proxyClass.getModule().getLayer(), null );
}
/**
* Test proxy implementing interfaces that the target module has no access
*/
@Test
public void testNoReadAccess() throws Exception {
ModuleFinder finder = ModuleFinder.of(MODS_DIR);
ModuleLayer bootLayer = ModuleLayer.boot();
Configuration cf = bootLayer
.configuration()
.resolveAndBind(ModuleFinder.of(), finder, Arrays.asList(modules));
ClassLoader scl = ClassLoader.getSystemClassLoader();
ModuleLayer layer = bootLayer.defineModulesWithOneLoader(cf, scl);
ClassLoader loader = layer.findLoader("m1" );
assertTrue(layer.findModule("m1" ).isPresent());
assertTrue(layer.findModule("m2" ).isPresent());
assertTrue(layer.findModule("m3" ).isPresent());
Class <?>[] interfaces = new Class <?>[] {
Class .forName("p.one.I" , false , loader),
Class .forName("p.two.B" , false , loader) // non-public interface but exported package
};
checkIAE(loader, interfaces);
}
private void checkIAE(ClassLoader loader, Class <?>[] interfaces) {
try {
Proxy.getProxyClass(loader, interfaces);
throw new RuntimeException("Expected IllegalArgumentException thrown" );
} catch (IllegalArgumentException e) {}
try {
Proxy.newProxyInstance(loader, interfaces, handler);
throw new RuntimeException("Expected IllegalArgumentException thrown" );
} catch (IllegalArgumentException e) {}
}
private final static InvocationHandler handler =
(proxy, m, params) -> { throw new RuntimeException(m.toString()); };
}
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