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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.
*/
import java.lang.module.ModuleDescriptor;
import java.lang.module.ModuleDescriptor.*;
import java.lang.module.ModuleFinder;
import java.lang.module.ModuleReference;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import java.util.Map;
import java.util.Set;
import jdk.internal.misc.JavaLangModuleAccess;
import jdk.internal.misc.SharedSecrets;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
/**
* @test
* @bug 8142968 8173381
* @library /lib/testlibrary
* @modules java.base/jdk.internal.misc
* @modules java.base/jdk.internal.module
* @modules java.base/jdk.internal.org.objectweb.asm
* @build ModuleTargetHelper
* @run testng SystemModulesTest
* @summary Verify the properties of ModuleDescriptor created
* by SystemModules
*/
public class SystemModulesTest {
private static final JavaLangModuleAccess JLMA =
SharedSecrets.getJavaLangModuleAccess();
private static final String OS_NAME = System.getProperty("os.name");
private static final String OS_ARCH = System.getProperty("os.arch");
// system modules containing no package
private static final Set<String> EMPTY_MODULES =
Set.of("java.se", "jdk.jdwp.agent", "jdk.pack");
@Test
public void testSystemModules() {
Path jimage = Paths.get(System.getProperty("java.home"), "lib", "modules");
if (Files.notExists(jimage))
return;
ModuleFinder.ofSystem().findAll().stream()
.forEach(this::checkAttributes);
}
// JMOD files are created with OS name and arch matching the bundle name
private boolean checkOSName(String name) {
if (OS_NAME.startsWith("Windows")) {
return name.equals("windows");
}
switch (OS_NAME) {
case "Linux":
return name.equals("linux");
case "SunOS":
return name.equals("solaris");
case "Mac OS X":
return name.equals("macos");
default:
// skip validation on unknown platform
System.out.println("Skip checking OS name in ModuleTarget: " + name);
return true;
}
}
private boolean checkOSArch(String name) {
if (name.equals(OS_ARCH))
return true;
switch (OS_ARCH) {
case "i386":
case "x86":
return name.equals("x86");
case "amd64":
case "x86_64":
return name.equals("amd64");
default:
// skip validation on unknown platform
System.out.println("Skip checking OS arch in ModuleTarget: " + name);
return true;
}
}
private void checkAttributes(ModuleReference modRef) {
try {
ModuleTargetHelper.ModuleTarget mt = ModuleTargetHelper.read(modRef);
String[] values = mt.targetPlatform().split("-");
assertTrue(checkOSName(values[0]));
assertTrue(checkOSArch(values[1]));
} catch (IOException exp) {
throw new UncheckedIOException(exp);
}
}
/**
* Verify ModuleDescriptor contains unmodifiable sets
*/
@Test
public void testUnmodifableDescriptors() throws Exception {
ModuleFinder.ofSystem().findAll()
.stream()
.map(ModuleReference::descriptor)
.forEach(this::testModuleDescriptor);
}
private void testModuleDescriptor(ModuleDescriptor md) {
assertUnmodifiable(md.packages(), "package");
assertUnmodifiable(md.requires(),
JLMA.newRequires(Set.of(Requires.Modifier.TRANSITIVE),
"require", null));
for (Requires req : md.requires()) {
assertUnmodifiable(req.modifiers(), Requires.Modifier.TRANSITIVE);
}
assertUnmodifiable(md.exports(), JLMA.newExports(Set.of(), "export", Set.of()));
for (Exports exp : md.exports()) {
assertUnmodifiable(exp.modifiers(), Exports.Modifier.SYNTHETIC);
assertUnmodifiable(exp.targets(), "target");
}
assertUnmodifiable(md.opens(), JLMA.newOpens(Set.of(), "open", Set.of()));
for (Opens opens : md.opens()) {
assertUnmodifiable(opens.modifiers(), Opens.Modifier.SYNTHETIC);
assertUnmodifiable(opens.targets(), "target");
}
assertUnmodifiable(md.uses(), "use");
assertUnmodifiable(md.provides(),
JLMA.newProvides("provide", List.of("provide")));
for (Provides provides : md.provides()) {
assertUnmodifiable(provides.providers(), "provide");
}
}
private <T> void assertUnmodifiable(Set<T> set, T dummy) {
try {
set.add(dummy);
fail("Should throw UnsupportedOperationException");
} catch (UnsupportedOperationException e) {
// pass
} catch (Exception e) {
fail("Should throw UnsupportedOperationException");
}
}
private <T> void assertUnmodifiable(List<T> list, T dummy) {
try {
list.add(dummy);
fail("Should throw UnsupportedOperationException");
} catch (UnsupportedOperationException e) {
// pass
} catch (Exception e) {
fail("Should throw UnsupportedOperationException");
}
}
private <T, V> void assertUnmodifiable(Map<T, V> set, T dummyKey, V dummyValue) {
try {
set.put(dummyKey, dummyValue);
fail("Should throw UnsupportedOperationException");
} catch (UnsupportedOperationException e) {
// pass
} catch (Exception e) {
fail("Should throw UnsupportedOperationException");
}
}
}
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