/
AutomaticModulesTest.java
1206 lines (992 loc) · 44.5 KB
/
AutomaticModulesTest.java
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/*
* Copyright (c) 2015, 2021, 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 8142968 8253751 8262944
* @library /test/lib
* @build AutomaticModulesTest
* jdk.test.lib.util.JarUtils
* jdk.test.lib.util.ModuleUtils
* @run testng AutomaticModulesTest
* @summary Basic tests for automatic modules
*/
import java.io.IOException;
import java.lang.module.Configuration;
import java.lang.module.FindException;
import java.lang.module.InvalidModuleDescriptorException;
import java.lang.module.ModuleDescriptor;
import java.lang.module.ModuleDescriptor.Requires.Modifier;
import java.lang.module.ModuleFinder;
import java.lang.module.ModuleReference;
import java.lang.module.ResolutionException;
import java.lang.module.ResolvedModule;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Optional;
import java.util.Set;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import jdk.test.lib.util.JarUtils;
import jdk.test.lib.util.ModuleUtils;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
@Test
public class AutomaticModulesTest {
private static final Path USER_DIR = Path.of(System.getProperty("user.dir"));
@DataProvider(name = "jarnames")
public Object[][] createJarNames() {
return new Object[][] {
// JAR file name module-name[/version]
{ "foo.jar", "foo" },
{ "foo4j.jar", "foo4j", },
{ "foo1.jar", "foo1" },
{ "foo10.jar", "foo10" },
{ "foo-1.jar", "foo/1" },
{ "foo-1.2.jar", "foo/1.2" },
{ "foo-1.2.3.jar", "foo/1.2.3" },
{ "foo-1.2.3.4.jar", "foo/1.2.3.4" },
{ "foo-10.jar", "foo/10" },
{ "foo-10.20.jar", "foo/10.20" },
{ "foo-10.20.30.jar", "foo/10.20.30" },
{ "foo-10.20.30.40.jar", "foo/10.20.30.40" },
{ "foo-bar.jar", "foo.bar" },
{ "foo-bar-1.jar", "foo.bar/1" },
{ "foo-bar-1.2.jar", "foo.bar/1.2"},
{ "foo-bar-10.jar", "foo.bar/10" },
{ "foo-bar-10.20.jar", "foo.bar/10.20" },
{ "foo.bar1.jar", "foo.bar1" },
{ "foo.bar10.jar", "foo.bar10" },
{ "foo-1.2-SNAPSHOT.jar", "foo/1.2-SNAPSHOT" },
{ "foo-bar-1.2-SNAPSHOT.jar", "foo.bar/1.2-SNAPSHOT" },
{ "foo--bar-1.0.jar", "foo.bar/1.0" },
{ "-foo-bar-1.0.jar", "foo.bar/1.0" },
{ "foo-bar--1.0.jar", "foo.bar/1.0" },
};
}
// JAR file names that do not map to a legal module name
@DataProvider(name = "badjarnames")
public Object[][] createBadNames() {
return new Object[][]{
{ ".jar", null },
{ "_.jar", null },
{ "foo.1.jar", null },
{ "1foo.jar", null },
{ "foo.1bar.jar", null },
};
}
/**
* Test mapping of JAR file names to module names
*/
@Test(dataProvider = "jarnames")
public void testNames(String fn, String mid) throws IOException {
String[] s = mid.split("/");
String mn = s[0];
String vs = (s.length == 2) ? s[1] : null;
Path dir = Files.createTempDirectory(USER_DIR, "mods");
Path jf = dir.resolve(fn);
// create empty JAR file
createDummyJarFile(jf);
// create a ModuleFinder to find modules in the directory
ModuleFinder finder = ModuleFinder.of(dir);
// a module with the expected name should be found
Optional<ModuleReference> mref = finder.find(mn);
assertTrue(mref.isPresent(), mn + " not found");
ModuleDescriptor descriptor = mref.get().descriptor();
assertTrue(descriptor.isAutomatic());
assertEquals(descriptor.name(), mn);
if (vs == null) {
assertFalse(descriptor.version().isPresent());
} else {
assertEquals(descriptor.version().get().toString(), vs);
}
}
/**
* Test impossible mapping of JAR files to modules names
*/
@Test(dataProvider = "badjarnames", expectedExceptions = FindException.class)
public void testBadNames(String fn, String ignore) throws IOException {
Path dir = Files.createTempDirectory(USER_DIR, "mods");
Path jf = dir.resolve(fn);
// create empty JAR file
createDummyJarFile(jf);
// should throw FindException
ModuleFinder.of(dir).findAll();
}
@DataProvider(name = "modulenames")
public Object[][] createModuleNames() {
return new Object[][] {
{ "foo", null },
{ "foo", "1.0" },
{ "foo.bar", null },
{ "foo.bar", "1.0" },
{ "class_", null },
{ "class_", "1.0" },
};
}
@DataProvider(name = "badmodulenames")
public Object[][] createBadModuleNames() {
return new Object[][] {
{ "", null },
{ "", "1.0" },
{ "666", null },
{ "666", "1.0" },
{ "foo.class", null },
{ "foo.class", "1.0" },
};
}
/**
* Test JAR files with the Automatic-Module-Name attribute
*/
@Test(dataProvider = "modulenames")
public void testAutomaticModuleNameAttribute(String name, String vs)
throws IOException
{
Manifest man = new Manifest();
Attributes attrs = man.getMainAttributes();
attrs.put(Attributes.Name.MANIFEST_VERSION, "1.0.0");
attrs.put(new Attributes.Name("Automatic-Module-Name"), name);
Path dir = Files.createTempDirectory(USER_DIR, "mods");
String jar;
if (vs == null) {
jar = "m.jar";
} else {
jar = "m-" + vs + ".jar";
}
createDummyJarFile(dir.resolve(jar), man);
ModuleFinder finder = ModuleFinder.of(dir);
assertTrue(finder.findAll().size() == 1);
assertTrue(finder.find(name).isPresent());
ModuleReference mref = finder.find(name).get();
ModuleDescriptor descriptor = mref.descriptor();
assertEquals(descriptor.name(), name);
assertEquals(descriptor.version()
.map(ModuleDescriptor.Version::toString)
.orElse(null), vs);
}
/**
* Test JAR files with the Automatic-Module-Name attribute with a value
* that is not a legal module name.
*/
@Test(dataProvider = "badmodulenames", expectedExceptions = FindException.class)
public void testBadAutomaticModuleNameAttribute(String name, String ignore)
throws IOException
{
// should throw FindException
testAutomaticModuleNameAttribute(name, null);
}
/**
* Test all packages are exported
*/
public void testPackages() throws IOException {
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("m.jar"),
"p/C1.class", "p/C2.class", "q/C1.class");
ModuleFinder finder = ModuleFinder.of(dir);
Optional<ModuleReference> mref = finder.find("m");
assertTrue(mref.isPresent(), "m not found");
ModuleDescriptor descriptor = mref.get().descriptor();
assertTrue(descriptor.isAutomatic());
assertTrue(descriptor.packages().size() == 2);
assertTrue(descriptor.packages().contains("p"));
assertTrue(descriptor.packages().contains("q"));
assertTrue(descriptor.exports().isEmpty());
assertTrue(descriptor.opens().isEmpty());
}
/**
* Test class files in JAR file where the entry does not correspond to a
* legal package name.
*/
public void testBadPackage() throws IOException {
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("m.jar"), "p/C1.class", "p-/C2.class");
ModuleFinder finder = ModuleFinder.of(dir);
Optional<ModuleReference> mref = finder.find("m");
assertTrue(mref.isPresent(), "m not found");
ModuleDescriptor descriptor = mref.get().descriptor();
assertTrue(descriptor.isAutomatic());
assertTrue(descriptor.packages().size() == 1);
assertTrue(descriptor.packages().contains("p"));
assertTrue(descriptor.exports().isEmpty());
assertTrue(descriptor.opens().isEmpty());
}
/**
* Test non-class resources in a JAR file.
*/
public void testNonClassResources() throws IOException {
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("m.jar"),
"LICENSE",
"README",
"WEB-INF/tags",
"p/Type.class",
"p/resources/m.properties");
ModuleFinder finder = ModuleFinder.of(dir);
Optional<ModuleReference> mref = finder.find("m");
assertTrue(mref.isPresent(), "m not found");
ModuleDescriptor descriptor = mref.get().descriptor();
assertTrue(descriptor.isAutomatic());
assertTrue(descriptor.packages().size() == 1);
assertTrue(descriptor.packages().contains("p"));
}
/**
* Test .class file in unnamed package (top-level directory)
*/
@Test(expectedExceptions = FindException.class)
public void testClassInUnnamedPackage() throws IOException {
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("m.jar"), "Mojo.class");
ModuleFinder finder = ModuleFinder.of(dir);
finder.findAll();
}
/**
* Test JAR file with META-INF/services configuration file
*/
public void testServicesConfiguration() throws IOException {
String service = "p.S";
String provider = "p.S1";
Path tmpdir = Files.createTempDirectory(USER_DIR, "tmp");
// provider class
Path providerClass = tmpdir.resolve(provider.replace('.', '/') + ".class");
Files.createDirectories(providerClass.getParent());
Files.createFile(providerClass);
// services configuration file
Path services = tmpdir.resolve("META-INF").resolve("services");
Files.createDirectories(services);
Files.write(services.resolve(service), Set.of(provider));
Path dir = Files.createTempDirectory(USER_DIR, "mods");
JarUtils.createJarFile(dir.resolve("m.jar"), tmpdir);
ModuleFinder finder = ModuleFinder.of(dir);
Optional<ModuleReference> mref = finder.find("m");
assertTrue(mref.isPresent(), "m not found");
ModuleDescriptor descriptor = mref.get().descriptor();
assertTrue(descriptor.provides().size() == 1);
ModuleDescriptor.Provides provides = descriptor.provides().iterator().next();
assertEquals(provides.service(), service);
assertTrue(provides.providers().size() == 1);
assertTrue(provides.providers().contains((provider)));
}
// META-INF/services files that don't map to legal service names
@DataProvider(name = "badservices")
public Object[][] createBadServices() {
return new Object[][] {
// service type provider type
{ "-", "p.S1" },
{ ".S", "p.S1" },
};
}
/**
* Test JAR file with META-INF/services configuration file with bad
* values or names.
*/
@Test(dataProvider = "badservices")
public void testBadServicesNames(String service, String provider)
throws IOException
{
Path tmpdir = Files.createTempDirectory(USER_DIR, "tmp");
Path services = tmpdir.resolve("META-INF").resolve("services");
Files.createDirectories(services);
Files.write(services.resolve(service), Set.of(provider));
Path dir = Files.createTempDirectory(USER_DIR, "mods");
JarUtils.createJarFile(dir.resolve("m.jar"), tmpdir);
Optional<ModuleReference> omref = ModuleFinder.of(dir).find("m");
assertTrue(omref.isPresent());
ModuleDescriptor descriptor = omref.get().descriptor();
assertTrue(descriptor.provides().isEmpty());
}
// META-INF/services configuration file entries that are not legal
@DataProvider(name = "badproviders")
public Object[][] createBadProviders() {
return new Object[][] {
// service type provider type
{ "p.S", "-" },
{ "p.S", "p..S1" },
{ "p.S", "S1." },
};
}
/**
* Test JAR file with META-INF/services configuration file with bad
* values or names.
*/
@Test(dataProvider = "badproviders", expectedExceptions = FindException.class)
public void testBadProviderNames(String service, String provider)
throws IOException
{
Path tmpdir = Files.createTempDirectory(USER_DIR, "tmp");
// provider class
Path providerClass = tmpdir.resolve(provider.replace('.', '/') + ".class");
Files.createDirectories(providerClass.getParent());
Files.createFile(providerClass);
// services configuration file
Path services = tmpdir.resolve("META-INF").resolve("services");
Files.createDirectories(services);
Files.write(services.resolve(service), Set.of(provider));
Path dir = Files.createTempDirectory(USER_DIR, "mods");
JarUtils.createJarFile(dir.resolve("m.jar"), tmpdir);
// should throw FindException
ModuleFinder.of(dir).findAll();
}
/**
* Test JAR file with META-INF/services configuration file listing a
* provider that is not in the module.
*/
@Test(expectedExceptions = FindException.class)
public void testMissingProviderPackage() throws IOException {
Path tmpdir = Files.createTempDirectory(USER_DIR, "tmp");
// services configuration file
Path services = tmpdir.resolve("META-INF").resolve("services");
Files.createDirectories(services);
Files.write(services.resolve("p.S"), Set.of("q.P"));
Path dir = Files.createTempDirectory(USER_DIR, "mods");
Path jarfile = dir.resolve("m.jar");
JarUtils.createJarFile(jarfile, tmpdir);
// catch FindException, inspect its cause's type and details, and rethrow
var expectedMessage = "Provider class q.P not in JAR file " + jarfile.getFileName();
try {
ModuleFinder.of(dir).findAll();
} catch (FindException exception) {
if (exception.getCause() instanceof InvalidModuleDescriptorException imde) {
var actualMessage = imde.getMessage();
if (actualMessage.equals(expectedMessage)) {
throw exception; // rethrow as expected
}
throw new AssertionError(
"""
Unexpected detail message in InvalidModuleDescriptorException:
Expected message -> '%s'
Actual message -> '%s'
""".formatted(expectedMessage, actualMessage));
}
throw new AssertionError("Unexpected exception cause: " + exception.getCause());
}
}
/**
* Test that a JAR file with a Main-Class attribute results
* in a module with a main class.
*/
public void testMainClass() throws IOException {
String mainClass = "p.Main";
Manifest man = new Manifest();
Attributes attrs = man.getMainAttributes();
attrs.put(Attributes.Name.MANIFEST_VERSION, "1.0.0");
attrs.put(Attributes.Name.MAIN_CLASS, mainClass);
Path dir = Files.createTempDirectory(USER_DIR, "mods");
String entry = mainClass.replace('.', '/') + ".class";
createDummyJarFile(dir.resolve("m.jar"), man, entry);
ModuleFinder finder = ModuleFinder.of(dir);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf = resolve(parent, finder, "m");
ModuleDescriptor descriptor = findDescriptor(cf, "m");
assertTrue(descriptor.mainClass().isPresent());
assertEquals(descriptor.mainClass().get(), mainClass);
}
// Main-Class files that do not map to a legal qualified type name
@DataProvider(name = "badmainclass")
public Object[][] createBadMainClass() {
return new Object[][] {
{ "p..Main", null },
{ "p-.Main", null },
};
}
/**
* Test that a JAR file with a Main-Class attribute that is not a qualified
* type name.
*/
@Test(dataProvider = "badmainclass")
public void testBadMainClass(String mainClass, String ignore) throws IOException {
Manifest man = new Manifest();
Attributes attrs = man.getMainAttributes();
attrs.put(Attributes.Name.MANIFEST_VERSION, "1.0.0");
attrs.put(Attributes.Name.MAIN_CLASS, mainClass);
Path dir = Files.createTempDirectory(USER_DIR, "mods");
String entry = mainClass.replace('.', '/') + ".class";
createDummyJarFile(dir.resolve("m.jar"), man, entry);
// bad Main-Class value should be ignored
Optional<ModuleReference> omref = ModuleFinder.of(dir).find("m");
assertTrue(omref.isPresent());
ModuleDescriptor descriptor = omref.get().descriptor();
assertFalse(descriptor.mainClass().isPresent());
}
/**
* Test that a JAR file with a Main-Class attribute that is not in the module
*/
public void testMissingMainClassPackage() throws IOException {
Manifest man = new Manifest();
Attributes attrs = man.getMainAttributes();
attrs.put(Attributes.Name.MANIFEST_VERSION, "1.0.0");
attrs.put(Attributes.Name.MAIN_CLASS, "p.Main");
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("m.jar"), man);
// Main-Class should be ignored because package p is not in module
Optional<ModuleReference> omref = ModuleFinder.of(dir).find("m");
assertTrue(omref.isPresent());
ModuleDescriptor descriptor = omref.get().descriptor();
assertFalse(descriptor.mainClass().isPresent());
}
/**
* Basic test of a configuration created with automatic modules.
* a requires b*
* a requires c*
* b*
* c*
*/
public void testConfiguration1() throws Exception {
ModuleDescriptor descriptor1
= ModuleDescriptor.newModule("a")
.requires("b")
.requires("c")
.requires("java.base")
.build();
// b and c are automatic modules
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("b.jar"), "p/T.class");
createDummyJarFile(dir.resolve("c.jar"), "q/T.class");
// module finder locates a and the modules in the directory
ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
ModuleFinder finder2 = ModuleFinder.of(dir);
ModuleFinder finder = ModuleFinder.compose(finder1, finder2);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf = resolve(parent, finder, "a");
assertTrue(cf.modules().size() == 3);
assertTrue(cf.findModule("a").isPresent());
assertTrue(cf.findModule("b").isPresent());
assertTrue(cf.findModule("c").isPresent());
ResolvedModule base = cf.findModule("java.base").get();
assertTrue(base.configuration() == ModuleLayer.boot().configuration());
ResolvedModule a = cf.findModule("a").get();
ResolvedModule b = cf.findModule("b").get();
ResolvedModule c = cf.findModule("c").get();
// b && c only require java.base
assertTrue(b.reference().descriptor().requires().size() == 1);
assertTrue(c.reference().descriptor().requires().size() == 1);
// readability
assertTrue(a.reads().size() == 3);
assertTrue(a.reads().contains(base));
assertTrue(a.reads().contains(b));
assertTrue(a.reads().contains(c));
assertTrue(b.reads().contains(a));
assertTrue(b.reads().contains(c));
testReadAllBootModules(cf, "b"); // b reads all modules in boot layer
assertTrue(c.reads().contains(a));
assertTrue(c.reads().contains(b));
testReadAllBootModules(cf, "c"); // c reads all modules in boot layer
}
/**
* Basic test of a configuration created with automatic modules
* a requires b
* b requires c*
* c*
* d*
*/
public void testInConfiguration2() throws IOException {
ModuleDescriptor descriptor1
= ModuleDescriptor.newModule("a")
.requires("b")
.requires("java.base")
.build();
ModuleDescriptor descriptor2
= ModuleDescriptor.newModule("b")
.requires("c")
.requires("java.base")
.build();
// c and d are automatic modules
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("c.jar"), "p/T.class");
createDummyJarFile(dir.resolve("d.jar"), "q/T.class");
// module finder locates a and the modules in the directory
ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
ModuleFinder finder2 = ModuleFinder.of(dir);
ModuleFinder finder = ModuleFinder.compose(finder1, finder2);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf = resolve(parent, finder, "a", "d");
assertTrue(cf.modules().size() == 4);
assertTrue(cf.findModule("a").isPresent());
assertTrue(cf.findModule("b").isPresent());
assertTrue(cf.findModule("c").isPresent());
assertTrue(cf.findModule("d").isPresent());
// c && d should only require java.base
assertTrue(findDescriptor(cf, "c").requires().size() == 1);
assertTrue(findDescriptor(cf, "d").requires().size() == 1);
// readability
ResolvedModule base = cf.findModule("java.base").get();
assertTrue(base.configuration() == ModuleLayer.boot().configuration());
ResolvedModule a = cf.findModule("a").get();
ResolvedModule b = cf.findModule("b").get();
ResolvedModule c = cf.findModule("c").get();
ResolvedModule d = cf.findModule("d").get();
assertTrue(a.reads().size() == 2);
assertTrue(a.reads().contains(b));
assertTrue(a.reads().contains(base));
assertTrue(b.reads().size() == 3);
assertTrue(b.reads().contains(c));
assertTrue(b.reads().contains(d));
assertTrue(b.reads().contains(base));
assertTrue(c.reads().contains(a));
assertTrue(c.reads().contains(b));
assertTrue(c.reads().contains(d));
testReadAllBootModules(cf, "c"); // c reads all modules in boot layer
assertTrue(d.reads().contains(a));
assertTrue(d.reads().contains(b));
assertTrue(d.reads().contains(c));
testReadAllBootModules(cf, "d"); // d reads all modules in boot layer
}
/**
* Basic test of a configuration created with automatic modules
* a requires b
* b requires transitive c*
* c*
* d*
*/
public void testInConfiguration3() throws IOException {
ModuleDescriptor descriptor1
= ModuleDescriptor.newModule("a")
.requires("b")
.requires("java.base")
.build();
ModuleDescriptor descriptor2
= ModuleDescriptor.newModule("b")
.requires(Set.of(Modifier.TRANSITIVE), "c")
.requires("java.base")
.build();
// c and d are automatic modules
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("c.jar"), "p/T.class");
createDummyJarFile(dir.resolve("d.jar"), "q/T.class");
// module finder locates a and the modules in the directory
ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
ModuleFinder finder2 = ModuleFinder.of(dir);
ModuleFinder finder = ModuleFinder.compose(finder1, finder2);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf = resolve(parent, finder, "a", "d");
assertTrue(cf.modules().size() == 4);
assertTrue(cf.findModule("a").isPresent());
assertTrue(cf.findModule("b").isPresent());
assertTrue(cf.findModule("c").isPresent());
assertTrue(cf.findModule("d").isPresent());
ResolvedModule base = cf.findModule("java.base").get();
assertTrue(base.configuration() == ModuleLayer.boot().configuration());
ResolvedModule a = cf.findModule("a").get();
ResolvedModule b = cf.findModule("b").get();
ResolvedModule c = cf.findModule("c").get();
ResolvedModule d = cf.findModule("d").get();
// c && d should only require java.base
assertTrue(findDescriptor(cf, "c").requires().size() == 1);
assertTrue(findDescriptor(cf, "d").requires().size() == 1);
// readability
assertTrue(a.reads().size() == 4);
assertTrue(a.reads().contains(b));
assertTrue(a.reads().contains(c));
assertTrue(a.reads().contains(d));
assertTrue(a.reads().contains(base));
assertTrue(b.reads().size() == 3);
assertTrue(b.reads().contains(c));
assertTrue(b.reads().contains(d));
assertTrue(b.reads().contains(base));
assertTrue(reads(cf, "b", "c"));
assertTrue(reads(cf, "b", "d"));
assertTrue(reads(cf, "b", "java.base"));
assertTrue(c.reads().contains(a));
assertTrue(c.reads().contains(b));
assertTrue(c.reads().contains(d));
testReadAllBootModules(cf, "c"); // c reads all modules in boot layer
assertTrue(d.reads().contains(a));
assertTrue(d.reads().contains(b));
assertTrue(d.reads().contains(c));
testReadAllBootModules(cf, "d"); // d reads all modules in boot layer
}
/**
* Basic test to ensure that no automatic modules are resolved when
* an automatic module is not a root or required by other modules.
*/
public void testInConfiguration4() throws IOException {
ModuleDescriptor descriptor1
= ModuleDescriptor.newModule("m1")
.requires("java.base")
.build();
// automatic modules
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("auto1.jar"), "p1/C.class");
createDummyJarFile(dir.resolve("auto2.jar"), "p2/C.class");
createDummyJarFile(dir.resolve("auto3.jar"), "p3/C.class");
// module finder locates m1 and the modules in the directory
ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
ModuleFinder finder2 = ModuleFinder.of(dir);
ModuleFinder finder = ModuleFinder.compose(finder1, finder2);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf = resolve(parent, finder, "m1");
// ensure that no automatic module is resolved
assertTrue(cf.modules().size() == 1);
assertTrue(cf.findModule("m1").isPresent());
}
/**
* Basic test to ensure that if an automatic module is resolved then
* all observable automatic modules are resolved.
*/
public void testInConfiguration5() throws IOException {
// m1 requires m2
ModuleDescriptor descriptor1
= ModuleDescriptor.newModule("m1")
.requires("m2").build();
// m2 requires automatic module
ModuleDescriptor descriptor2
= ModuleDescriptor.newModule("m2")
.requires("auto1")
.build();
// automatic modules
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("auto1.jar"), "p1/C.class");
createDummyJarFile(dir.resolve("auto2.jar"), "p2/C.class");
createDummyJarFile(dir.resolve("auto3.jar"), "p3/C.class");
// module finder locates m1, m2, and the modules in the directory
ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
ModuleFinder finder2 = ModuleFinder.of(dir);
ModuleFinder finder = ModuleFinder.compose(finder1, finder2);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf = resolve(parent, finder, "m1");
// all automatic modules should be resolved
assertTrue(cf.modules().size() == 5);
assertTrue(cf.findModule("m1").isPresent());
assertTrue(cf.findModule("m2").isPresent());
assertTrue(cf.findModule("auto1").isPresent());
assertTrue(cf.findModule("auto2").isPresent());
assertTrue(cf.findModule("auto3").isPresent());
ResolvedModule base = parent.findModule("java.base")
.orElseThrow(() -> new RuntimeException());
ResolvedModule m1 = cf.findModule("m1").get();
ResolvedModule m2 = cf.findModule("m2").get();
ResolvedModule auto1 = cf.findModule("auto1").get();
ResolvedModule auto2 = cf.findModule("auto2").get();
ResolvedModule auto3 = cf.findModule("auto3").get();
// m1 does not read the automatic modules
assertTrue(m1.reads().size() == 2);
assertTrue(m1.reads().contains(m2));
assertTrue(m1.reads().contains(base));
// m2 should read all the automatic modules
assertTrue(m2.reads().size() == 4);
assertTrue(m2.reads().contains(auto1));
assertTrue(m2.reads().contains(auto2));
assertTrue(m2.reads().contains(auto3));
assertTrue(m2.reads().contains(base));
assertTrue(auto1.reads().contains(m1));
assertTrue(auto1.reads().contains(m2));
assertTrue(auto1.reads().contains(auto2));
assertTrue(auto1.reads().contains(auto3));
assertTrue(auto1.reads().contains(base));
assertTrue(auto2.reads().contains(m1));
assertTrue(auto2.reads().contains(m2));
assertTrue(auto2.reads().contains(auto1));
assertTrue(auto2.reads().contains(auto3));
assertTrue(auto2.reads().contains(base));
assertTrue(auto3.reads().contains(m1));
assertTrue(auto3.reads().contains(m2));
assertTrue(auto3.reads().contains(auto1));
assertTrue(auto3.reads().contains(auto2));
assertTrue(auto3.reads().contains(base));
}
/**
* Basic test of automatic modules in a child configuration. All automatic
* modules that are found with the before finder should be resolved. The
* automatic modules that are found by the after finder and not shadowed
* by the before finder, or parent configurations, should also be resolved.
*/
public void testInConfiguration6() throws IOException {
// m1 requires auto1
ModuleDescriptor descriptor1
= ModuleDescriptor.newModule("m1")
.requires("auto1")
.build();
Path dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("auto1.jar"), "p1/C.class");
// module finder locates m1 and auto1
ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
ModuleFinder finder2 = ModuleFinder.of(dir);
ModuleFinder finder = ModuleFinder.compose(finder1, finder2);
Configuration parent = ModuleLayer.boot().configuration();
Configuration cf1 = resolve(parent, finder, "m1");
assertTrue(cf1.modules().size() == 2);
assertTrue(cf1.findModule("m1").isPresent());
assertTrue(cf1.findModule("auto1").isPresent());
ResolvedModule base = parent.findModule("java.base")
.orElseThrow(() -> new RuntimeException());
ResolvedModule m1 = cf1.findModule("m1").get();
ResolvedModule auto1 = cf1.findModule("auto1").get();
assertTrue(m1.reads().size() == 2);
assertTrue(m1.reads().contains(auto1));
assertTrue(m1.reads().contains(base));
assertTrue(auto1.reads().contains(m1));
assertTrue(auto1.reads().contains(base));
// create child configuration - the after finder locates auto1
dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("auto2.jar"), "p2/C.class");
ModuleFinder beforeFinder = ModuleFinder.of(dir);
dir = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir.resolve("auto1.jar"), "p1/C.class");
createDummyJarFile(dir.resolve("auto2.jar"), "p2/C.class");
createDummyJarFile(dir.resolve("auto3.jar"), "p3/C.class");
ModuleFinder afterFinder = ModuleFinder.of(dir);
Configuration cf2 = cf1.resolve(beforeFinder, afterFinder, Set.of("auto2"));
// auto1 should be found in parent and should not be in cf2
assertTrue(cf2.modules().size() == 2);
assertTrue(cf2.findModule("auto2").isPresent());
assertTrue(cf2.findModule("auto3").isPresent());
ResolvedModule auto2 = cf2.findModule("auto2").get();
ResolvedModule auto3 = cf2.findModule("auto3").get();
assertTrue(auto2.reads().contains(m1));
assertTrue(auto2.reads().contains(auto1));
assertTrue(auto2.reads().contains(auto3));
assertTrue(auto2.reads().contains(base));
assertTrue(auto3.reads().contains(m1));
assertTrue(auto3.reads().contains(auto1));
assertTrue(auto3.reads().contains(auto2));
assertTrue(auto3.reads().contains(base));
}
/**
* Basic test for a module requiring an automatic module in a parent
* configuration. If an explicit module in a child configuration reads an
* automatic module in a parent configuration then it should read all
* automatic modules in the parent configuration.
*/
public void testInConfiguration7() throws Exception {
// m1 requires auto1
ModuleDescriptor descriptor1 = ModuleDescriptor.newModule("m1")
.requires("auto1")
.build();
Path dir1 = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir1.resolve("auto1.jar"), "p1/C.class");
createDummyJarFile(dir1.resolve("auto2.jar"), "p2/C.class");
// module finder locates m1, auto1, and auto2
ModuleFinder finder1 = ModuleFinder.compose(ModuleUtils.finderOf(descriptor1),
ModuleFinder.of(dir1));
Configuration parent = ModuleLayer.boot().configuration();
ResolvedModule base = parent.findModule("java.base").orElseThrow();
Configuration cf1 = resolve(parent, finder1, "m1");
assertTrue(cf1.modules().size() == 3);
ResolvedModule m1 = cf1.findModule("m1").orElseThrow();
ResolvedModule auto1 = cf1.findModule("auto1").orElseThrow();
ResolvedModule auto2 = cf1.findModule("auto2").orElseThrow();
assertTrue(m1.reads().size() == 3);
assertTrue(m1.reads().contains(base));
assertTrue(m1.reads().contains(auto1));
assertTrue(m1.reads().contains(auto2));
assertTrue(auto1.reads().contains(base));
assertTrue(auto1.reads().contains(m1));
assertTrue(auto1.reads().contains(auto2));
assertTrue(auto2.reads().contains(base));
assertTrue(auto2.reads().contains(m1));
assertTrue(auto2.reads().contains(auto1));
// m2 requires auto1
ModuleDescriptor descriptor2 = ModuleDescriptor.newModule("m2")
.requires("auto1")
.build();
Path dir2 = Files.createTempDirectory(USER_DIR, "mods");
createDummyJarFile(dir1.resolve("auto3.jar"), "p3/C.class");
// module finder locates m2 and auto3
ModuleFinder finder2 = ModuleFinder.compose(ModuleUtils.finderOf(descriptor2),
ModuleFinder.of(dir2));
Configuration cf2 = resolve(cf1, finder2, "m2");
assertTrue(cf2.modules().size() == 1); // auto3 should not be resolved
ResolvedModule m2 = cf2.findModule("m2").orElseThrow();
assertTrue(m2.reads().size() == 3);
assertTrue(m2.reads().contains(base));
assertTrue(m2.reads().contains(auto1));
assertTrue(m2.reads().contains(auto2));
}
/**
* Basic test of a configuration created with automatic modules
* a requires b* and c*
* b* contains p
* c* contains p