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/*
* Copyright (c) 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
* @bug 8211825
* @modules jdk.compiler
* @library /test/lib
* @build jdk.test.lib.compiler.CompilerUtils jdk.test.lib.util.JarUtils
* @run testng/othervm AutomaticModulesTest
* @summary Tests automatic modules in module layers
*/
import java.nio.file.Files;
import java.nio.file.Path;
import java.lang.ModuleLayer.Controller;
import java.lang.module.*;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Set;
import jdk.test.lib.compiler.CompilerUtils;
import jdk.test.lib.util.JarUtils;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
/**
* This test uses two modules:
* m requires alib and has an entry point p.Main
* alib is an automatic module
*/
@Test
public class AutomaticModulesTest {
private static final String TEST_SRC = System.getProperty("test.src");
private static final Path CLASSES = Path.of("classes");
private static final Path LIB = Path.of("lib");
private static final Path MODS = Path.of("mods");
@BeforeTest
public void setup() throws Exception {
// javac -d classes src/alib/**
// jar cf lib/alib.jar -C classes .
Files.createDirectory(CLASSES);
assertTrue(CompilerUtils.compile(Path.of(TEST_SRC, "src", "alib"), CLASSES));
JarUtils.createJarFile(LIB.resolve("alib.jar"), CLASSES);
// javac -p lib -d mods/m - src/m/**
Path src = Path.of(TEST_SRC, "src", "m");
Path output = Files.createDirectories(MODS.resolve("m"));
assertTrue(CompilerUtils.compile(src, output, "-p", LIB.toString()));
}
/**
* Create a module layer with modules m and alib mapped to the same class
* loader.
*/
public void testOneLoader() throws Exception {
Configuration cf = ModuleLayer.boot()
.configuration()
.resolve(ModuleFinder.of(), ModuleFinder.of(MODS, LIB), Set.of("m"));
ResolvedModule m = cf.findModule("m").orElseThrow();
ResolvedModule alib = cf.findModule("alib").orElseThrow();
assertTrue(m.reads().contains(alib));
assertTrue(alib.reference().descriptor().isAutomatic());
ModuleLayer bootLayer = ModuleLayer.boot();
ClassLoader scl = ClassLoader.getSystemClassLoader();
Controller controller = ModuleLayer.defineModulesWithOneLoader(cf, List.of(bootLayer), scl);
invokeMain(controller, "m/p.Main");
}
/**
* Create a module layer with modules m and alib mapped to different class
* loaders. This will test that L(m) delegates to L(alib) in the same layer.
*/
public void testManyLoaders() throws Exception {
Configuration cf = ModuleLayer.boot()
.configuration()
.resolve(ModuleFinder.of(), ModuleFinder.of(MODS, LIB), Set.of("m"));
ResolvedModule m = cf.findModule("m").orElseThrow();
ResolvedModule alib = cf.findModule("alib").orElseThrow();
assertTrue(m.reads().contains(alib));
assertTrue(alib.reference().descriptor().isAutomatic());
ModuleLayer bootLayer = ModuleLayer.boot();
ClassLoader scl = ClassLoader.getSystemClassLoader();
Controller controller = ModuleLayer.defineModulesWithManyLoaders(cf, List.of(bootLayer), scl);
invokeMain(controller, "m/p.Main");
}
/**
* Create a module layer with alib and another module layer with m.
* This will test that L(m) delegates to L(alib) in a parent layer.
*/
public void testAutomaticModuleInParent() throws Exception {
ModuleLayer bootLayer = ModuleLayer.boot();
ClassLoader scl = ClassLoader.getSystemClassLoader();
// configuration/layer containing alib
Configuration cf1 = bootLayer
.configuration()
.resolve(ModuleFinder.of(), ModuleFinder.of(LIB), Set.of("alib"));
ModuleLayer layer1 = bootLayer.defineModulesWithOneLoader(cf1, scl);
// configuration/layer containing m
Configuration cf2 = cf1.resolve(ModuleFinder.of(), ModuleFinder.of(MODS), Set.of("m"));
Controller controller = ModuleLayer.defineModulesWithOneLoader(cf2, List.of(layer1), scl);
invokeMain(controller, "m/p.Main");
}
/**
* Invokes the main method of the given entry point (module-name/class-name)
*/
private void invokeMain(Controller controller, String entry) throws Exception {
String[] s = entry.split("/");
String moduleName = s[0];
String className = s[1];
int pos = className.lastIndexOf('.');
String packageName = className.substring(0, pos);
ModuleLayer layer = controller.layer();
Module module = layer.findModule(moduleName).orElseThrow();
controller.addExports(module, packageName, this.getClass().getModule());
ClassLoader loader = layer.findLoader(moduleName);
Class<?> c = loader.loadClass(className);
Method m = c.getMethod("main", String[].class);
m.invoke(null, (Object)new String[0]);
}
}
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