--- a/jdk/test/java/lang/reflect/Layer/BasicLayerTest.java Mon Apr 10 16:20:40 2017 +0530
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1219 +0,0 @@
-/*
- * Copyright (c) 2014, 2017, 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
- * @library /lib/testlibrary
- * @modules java.base/jdk.internal.misc
- * @build BasicLayerTest ModuleUtils
- * @compile layertest/Test.java
- * @run testng BasicLayerTest
- * @summary Basic tests for java.lang.reflect.Layer
- */
-
-import java.lang.module.Configuration;
-import java.lang.module.ModuleDescriptor;
-import java.lang.module.ModuleDescriptor.Requires;
-import java.lang.module.ModuleFinder;
-import java.lang.reflect.Layer;
-import java.lang.reflect.LayerInstantiationException;
-import java.lang.reflect.Module;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Set;
-import java.util.stream.Collectors;
-
-import jdk.internal.misc.SharedSecrets;
-
-import org.testng.annotations.DataProvider;
-import org.testng.annotations.Test;
-import static org.testng.Assert.*;
-
-@Test
-public class BasicLayerTest {
-
- /**
- * Creates a "non-strict" builder for building a module. This allows the
- * test the create ModuleDescriptor objects that do not require java.base.
- */
- private static ModuleDescriptor.Builder newBuilder(String mn) {
- return SharedSecrets.getJavaLangModuleAccess()
- .newModuleBuilder(mn, false, Set.of());
- }
-
- /**
- * Exercise Layer.empty()
- */
- public void testEmpty() {
- Layer emptyLayer = Layer.empty();
-
- assertTrue(emptyLayer.parents().isEmpty());
-
- assertTrue(emptyLayer.configuration() == Configuration.empty());
-
- assertTrue(emptyLayer.modules().isEmpty());
-
- assertFalse(emptyLayer.findModule("java.base").isPresent());
-
- try {
- emptyLayer.findLoader("java.base");
- assertTrue(false);
- } catch (IllegalArgumentException expected) { }
- }
-
-
- /**
- * Exercise Layer.boot()
- */
- public void testBoot() {
- Layer bootLayer = Layer.boot();
-
- // configuration
- Configuration cf = bootLayer.configuration();
- assertTrue(cf.findModule("java.base").get()
- .reference()
- .descriptor()
- .exports()
- .stream().anyMatch(e -> (e.source().equals("java.lang")
- && !e.isQualified())));
-
- // modules
- Set<Module> modules = bootLayer.modules();
- assertTrue(modules.contains(Object.class.getModule()));
- int count = (int) modules.stream().map(Module::getName).count();
- assertEquals(count, modules.size()); // module names are unique
-
- // findModule
- Module base = Object.class.getModule();
- assertTrue(bootLayer.findModule("java.base").get() == base);
- assertTrue(base.getLayer() == bootLayer);
-
- // findLoader
- assertTrue(bootLayer.findLoader("java.base") == null);
-
- // parents
- assertTrue(bootLayer.parents().size() == 1);
- assertTrue(bootLayer.parents().get(0) == Layer.empty());
- }
-
-
- /**
- * Exercise Layer defineModules, created with empty layer as parent
- */
- public void testLayerOnEmpty() {
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .requires("m2")
- .exports("p1")
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires("m3")
- .build();
-
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .build();
-
- ModuleFinder finder
- = ModuleUtils.finderOf(descriptor1, descriptor2, descriptor3);
-
- Configuration cf = resolve(finder, "m1");
-
- // map each module to its own class loader for this test
- ClassLoader loader1 = new ClassLoader() { };
- ClassLoader loader2 = new ClassLoader() { };
- ClassLoader loader3 = new ClassLoader() { };
- Map<String, ClassLoader> map = new HashMap<>();
- map.put("m1", loader1);
- map.put("m2", loader2);
- map.put("m3", loader3);
-
- Layer layer = Layer.empty().defineModules(cf, map::get);
-
- // configuration
- assertTrue(layer.configuration() == cf);
- assertTrue(layer.configuration().modules().size() == 3);
-
- // modules
- Set<Module> modules = layer.modules();
- assertTrue(modules.size() == 3);
- Set<String> names = modules.stream()
- .map(Module::getName)
- .collect(Collectors.toSet());
- assertTrue(names.contains("m1"));
- assertTrue(names.contains("m2"));
- assertTrue(names.contains("m3"));
-
- // findModule
- Module m1 = layer.findModule("m1").get();
- Module m2 = layer.findModule("m2").get();
- Module m3 = layer.findModule("m3").get();
- assertEquals(m1.getName(), "m1");
- assertEquals(m2.getName(), "m2");
- assertEquals(m3.getName(), "m3");
- assertTrue(m1.getDescriptor() == descriptor1);
- assertTrue(m2.getDescriptor() == descriptor2);
- assertTrue(m3.getDescriptor() == descriptor3);
- assertTrue(m1.getLayer() == layer);
- assertTrue(m2.getLayer() == layer);
- assertTrue(m3.getLayer() == layer);
- assertTrue(modules.contains(m1));
- assertTrue(modules.contains(m2));
- assertTrue(modules.contains(m3));
- assertFalse(layer.findModule("godot").isPresent());
-
- // findLoader
- assertTrue(layer.findLoader("m1") == loader1);
- assertTrue(layer.findLoader("m2") == loader2);
- assertTrue(layer.findLoader("m3") == loader3);
- try {
- ClassLoader loader = layer.findLoader("godot");
- assertTrue(false);
- } catch (IllegalArgumentException ignore) { }
-
- // parents
- assertTrue(layer.parents().size() == 1);
- assertTrue(layer.parents().get(0) == Layer.empty());
- }
-
-
- /**
- * Exercise Layer defineModules, created with boot layer as parent
- */
- public void testLayerOnBoot() {
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .requires("m2")
- .requires("java.base")
- .exports("p1")
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires("java.base")
- .build();
-
- ModuleFinder finder
- = ModuleUtils.finderOf(descriptor1, descriptor2);
-
- Configuration parent = Layer.boot().configuration();
- Configuration cf = resolve(parent, finder, "m1");
-
- ClassLoader loader = new ClassLoader() { };
-
- Layer layer = Layer.boot().defineModules(cf, mn -> loader);
-
- // configuration
- assertTrue(layer.configuration() == cf);
- assertTrue(layer.configuration().modules().size() == 2);
-
- // modules
- Set<Module> modules = layer.modules();
- assertTrue(modules.size() == 2);
- Set<String> names = modules.stream()
- .map(Module::getName)
- .collect(Collectors.toSet());
- assertTrue(names.contains("m1"));
- assertTrue(names.contains("m2"));
-
- // findModule
- Module m1 = layer.findModule("m1").get();
- Module m2 = layer.findModule("m2").get();
- assertEquals(m1.getName(), "m1");
- assertEquals(m2.getName(), "m2");
- assertTrue(m1.getDescriptor() == descriptor1);
- assertTrue(m2.getDescriptor() == descriptor2);
- assertTrue(m1.getLayer() == layer);
- assertTrue(m2.getLayer() == layer);
- assertTrue(modules.contains(m1));
- assertTrue(modules.contains(m2));
- assertTrue(layer.findModule("java.base").get() == Object.class.getModule());
- assertFalse(layer.findModule("godot").isPresent());
-
- // findLoader
- assertTrue(layer.findLoader("m1") == loader);
- assertTrue(layer.findLoader("m2") == loader);
- assertTrue(layer.findLoader("java.base") == null);
-
- // parents
- assertTrue(layer.parents().size() == 1);
- assertTrue(layer.parents().get(0) == Layer.boot());
- }
-
-
- /**
- * Exercise Layer defineModules with a configuration of two modules that
- * have the same module-private package.
- */
- public void testPackageContainedInSelfAndOther() {
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .requires("m2")
- .packages(Set.of("p"))
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .packages(Set.of("p"))
- .build();
-
- ModuleFinder finder
- = ModuleUtils.finderOf(descriptor1, descriptor2);
-
- Configuration cf = resolve(finder, "m1");
- assertTrue(cf.modules().size() == 2);
-
- // one loader per module, should be okay
- Layer.empty().defineModules(cf, mn -> new ClassLoader() { });
-
- // same class loader
- try {
- ClassLoader loader = new ClassLoader() { };
- Layer.empty().defineModules(cf, mn -> loader);
- assertTrue(false);
- } catch (LayerInstantiationException expected) { }
- }
-
-
- /**
- * Exercise Layer defineModules with a configuration that is a partitioned
- * graph. The same package is exported in both partitions.
- */
- public void testSameExportInPartitionedGraph() {
-
- // m1 reads m2, m2 exports p to m1
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .requires("m2")
- .build();
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .exports("p", Set.of("m1"))
- .build();
-
- // m3 reads m4, m4 exports p to m3
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .requires("m4")
- .build();
- ModuleDescriptor descriptor4 = newBuilder("m4")
- .exports("p", Set.of("m3"))
- .build();
-
- ModuleFinder finder
- = ModuleUtils.finderOf(descriptor1,
- descriptor2,
- descriptor3,
- descriptor4);
-
- Configuration cf = resolve(finder, "m1", "m3");
- assertTrue(cf.modules().size() == 4);
-
- // one loader per module
- Layer.empty().defineModules(cf, mn -> new ClassLoader() { });
-
- // m1 & m2 in one loader, m3 & m4 in another loader
- ClassLoader loader1 = new ClassLoader() { };
- ClassLoader loader2 = new ClassLoader() { };
- Map<String, ClassLoader> map = new HashMap<>();
- map.put("m1", loader1);
- map.put("m2", loader1);
- map.put("m3", loader2);
- map.put("m4", loader2);
- Layer.empty().defineModules(cf, map::get);
-
- // same loader
- try {
- ClassLoader loader = new ClassLoader() { };
- Layer.empty().defineModules(cf, mn -> loader);
- assertTrue(false);
- } catch (LayerInstantiationException expected) { }
- }
-
-
- /**
- * Exercise Layer defineModules with a configuration with a module that
- * contains a package that is the same name as a non-exported package in
- * a parent layer.
- */
- public void testContainsSamePackageAsBootLayer() {
-
- // check assumption that java.base contains sun.launcher
- ModuleDescriptor base = Object.class.getModule().getDescriptor();
- assertTrue(base.packages().contains("sun.launcher"));
-
- ModuleDescriptor descriptor = newBuilder("m1")
- .requires("java.base")
- .packages(Set.of("sun.launcher"))
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(descriptor);
-
- Configuration parent = Layer.boot().configuration();
- Configuration cf = parent.resolve(finder, ModuleFinder.of(), Set.of("m1"));
- assertTrue(cf.modules().size() == 1);
-
- ClassLoader loader = new ClassLoader() { };
- Layer layer = Layer.boot().defineModules(cf, mn -> loader);
- assertTrue(layer.modules().size() == 1);
- }
-
-
- /**
- * Test layers with implied readability.
- *
- * The test consists of three configurations:
- * - Configuration/layer1: m1, m2 requires transitive m1
- * - Configuration/layer2: m3 requires m1
- */
- public void testImpliedReadabilityWithLayers1() {
-
- // cf1: m1 and m2, m2 requires transitive m1
-
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires(Set.of(Requires.Modifier.TRANSITIVE), "m1")
- .build();
-
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
-
- Configuration cf1 = resolve(finder1, "m2");
-
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
-
-
- // cf2: m3, m3 requires m2
-
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .requires("m2")
- .build();
-
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor3);
-
- Configuration cf2 = resolve(cf1, finder2, "m3");
-
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
-
- assertTrue(layer1.parents().size() == 1);
- assertTrue(layer1.parents().get(0) == Layer.empty());
-
- assertTrue(layer2.parents().size() == 1);
- assertTrue(layer2.parents().get(0) == layer1);
-
- Module m1 = layer2.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
- Module m3 = layer2.findModule("m3").get();
-
- assertTrue(m1.getLayer() == layer1);
- assertTrue(m2.getLayer() == layer1);
- assertTrue(m3.getLayer() == layer2);
-
- assertTrue(m1.getClassLoader() == cl1);
- assertTrue(m2.getClassLoader() == cl1);
- assertTrue(m3.getClassLoader() == cl2);
-
- assertTrue(m1.canRead(m1));
- assertFalse(m1.canRead(m2));
- assertFalse(m1.canRead(m3));
-
- assertTrue(m2.canRead(m1));
- assertTrue(m2.canRead(m2));
- assertFalse(m2.canRead(m3));
-
- assertTrue(m3.canRead(m1));
- assertTrue(m3.canRead(m2));
- assertTrue(m3.canRead(m3));
- }
-
-
- /**
- * Test layers with implied readability.
- *
- * The test consists of three configurations:
- * - Configuration/layer1: m1
- * - Configuration/layer2: m2 requires transitive m3, m3 requires m2
- */
- public void testImpliedReadabilityWithLayers2() {
-
- // cf1: m1
-
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
-
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
-
- Configuration cf1 = resolve(finder1, "m1");
-
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
-
-
- // cf2: m2, m3: m2 requires transitive m1, m3 requires m2
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires(Set.of(Requires.Modifier.TRANSITIVE), "m1")
- .build();
-
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .requires("m2")
- .build();
-
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor2, descriptor3);
-
- Configuration cf2 = resolve(cf1, finder2, "m3");
-
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
-
- assertTrue(layer1.parents().size() == 1);
- assertTrue(layer1.parents().get(0) == Layer.empty());
-
- assertTrue(layer2.parents().size() == 1);
- assertTrue(layer2.parents().get(0) == layer1);
-
- Module m1 = layer2.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
- Module m3 = layer2.findModule("m3").get();
-
- assertTrue(m1.getLayer() == layer1);
- assertTrue(m2.getLayer() == layer2);
- assertTrue(m3.getLayer() == layer2);
-
- assertTrue(m1.canRead(m1));
- assertFalse(m1.canRead(m2));
- assertFalse(m1.canRead(m3));
-
- assertTrue(m2.canRead(m1));
- assertTrue(m2.canRead(m2));
- assertFalse(m2.canRead(m3));
-
- assertTrue(m3.canRead(m1));
- assertTrue(m3.canRead(m2));
- assertTrue(m3.canRead(m3));
- }
-
-
- /**
- * Test layers with implied readability.
- *
- * The test consists of three configurations:
- * - Configuration/layer1: m1
- * - Configuration/layer2: m2 requires transitive m1
- * - Configuration/layer3: m3 requires m1
- */
- public void testImpliedReadabilityWithLayers3() {
-
- // cf1: m1
-
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
-
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
-
- Configuration cf1 = resolve(finder1, "m1");
-
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
-
-
- // cf2: m2 requires transitive m1
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires(Set.of(Requires.Modifier.TRANSITIVE), "m1")
- .build();
-
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor2);
-
- Configuration cf2 = resolve(cf1, finder2, "m2");
-
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
-
-
- // cf3: m3 requires m2
-
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .requires("m2")
- .build();
-
- ModuleFinder finder3 = ModuleUtils.finderOf(descriptor3);
-
- Configuration cf3 = resolve(cf2, finder3, "m3");
-
- ClassLoader cl3 = new ClassLoader() { };
- Layer layer3 = layer2.defineModules(cf3, mn -> cl3);
-
- assertTrue(layer1.parents().size() == 1);
- assertTrue(layer1.parents().get(0) == Layer.empty());
-
- assertTrue(layer2.parents().size() == 1);
- assertTrue(layer2.parents().get(0) == layer1);
-
- assertTrue(layer3.parents().size() == 1);
- assertTrue(layer3.parents().get(0) == layer2);
-
- Module m1 = layer3.findModule("m1").get();
- Module m2 = layer3.findModule("m2").get();
- Module m3 = layer3.findModule("m3").get();
-
- assertTrue(m1.getLayer() == layer1);
- assertTrue(m2.getLayer() == layer2);
- assertTrue(m3.getLayer() == layer3);
-
- assertTrue(m1.canRead(m1));
- assertFalse(m1.canRead(m2));
- assertFalse(m1.canRead(m3));
-
- assertTrue(m2.canRead(m1));
- assertTrue(m2.canRead(m2));
- assertFalse(m2.canRead(m3));
-
- assertTrue(m3.canRead(m1));
- assertTrue(m3.canRead(m2));
- assertTrue(m3.canRead(m3));
- }
-
-
- /**
- * Test layers with implied readability.
- *
- * The test consists of two configurations:
- * - Configuration/layer1: m1, m2 requires transitive m1
- * - Configuration/layer2: m3 requires transitive m2, m4 requires m3
- */
- public void testImpliedReadabilityWithLayers4() {
-
- // cf1: m1, m2 requires transitive m1
-
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires(Set.of(Requires.Modifier.TRANSITIVE), "m1")
- .build();
-
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
-
- Configuration cf1 = resolve(finder1, "m2");
-
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
-
-
- // cf2: m3 requires transitive m2, m4 requires m3
-
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .requires(Set.of(Requires.Modifier.TRANSITIVE), "m2")
- .build();
-
- ModuleDescriptor descriptor4 = newBuilder("m4")
- .requires("m3")
- .build();
-
-
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor3, descriptor4);
-
- Configuration cf2 = resolve(cf1, finder2, "m3", "m4");
-
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
-
- assertTrue(layer1.parents().size() == 1);
- assertTrue(layer1.parents().get(0) == Layer.empty());
-
- assertTrue(layer2.parents().size() == 1);
- assertTrue(layer2.parents().get(0) == layer1);
-
- Module m1 = layer2.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
- Module m3 = layer2.findModule("m3").get();
- Module m4 = layer2.findModule("m4").get();
-
- assertTrue(m1.getLayer() == layer1);
- assertTrue(m2.getLayer() == layer1);
- assertTrue(m3.getLayer() == layer2);
- assertTrue(m4.getLayer() == layer2);
-
- assertTrue(m1.canRead(m1));
- assertFalse(m1.canRead(m2));
- assertFalse(m1.canRead(m3));
- assertFalse(m1.canRead(m4));
-
- assertTrue(m2.canRead(m1));
- assertTrue(m2.canRead(m2));
- assertFalse(m1.canRead(m3));
- assertFalse(m1.canRead(m4));
-
- assertTrue(m3.canRead(m1));
- assertTrue(m3.canRead(m2));
- assertTrue(m3.canRead(m3));
- assertFalse(m3.canRead(m4));
-
- assertTrue(m4.canRead(m1));
- assertTrue(m4.canRead(m2));
- assertTrue(m4.canRead(m3));
- assertTrue(m4.canRead(m4));
- }
-
-
- /**
- * Test layers with a qualified export. The module exporting the package
- * does not read the target module.
- *
- * m1 { exports p to m2 }
- * m2 { }
- */
- public void testQualifiedExports1() {
- ModuleDescriptor descriptor1 = newBuilder("m1").
- exports("p", Set.of("m2"))
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .build();
-
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
-
- Configuration cf = resolve(finder1, "m1", "m2");
-
- ClassLoader cl = new ClassLoader() { };
- Layer layer = Layer.empty().defineModules(cf, mn -> cl);
- assertTrue(layer.modules().size() == 2);
-
- Module m1 = layer.findModule("m1").get();
- Module m2 = layer.findModule("m2").get();
-
- // check m1 exports p to m2
- assertFalse(m1.isExported("p"));
- assertTrue(m1.isExported("p", m2));
- assertFalse(m1.isOpen("p", m2));
- }
-
-
- /**
- * Test layers with a qualified export. The module exporting the package
- * reads the target module.
- *
- * m1 { exports p to m2; }
- * m2 { requires m1; }
- */
- public void testQualifiedExports2() {
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .exports("p", Set.of("m2"))
- .build();
-
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires("m1")
- .build();
-
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
-
- Configuration cf = resolve(finder1, "m2");
- ClassLoader cl = new ClassLoader() { };
- Layer layer = Layer.empty().defineModules(cf, mn -> cl);
- assertTrue(layer.modules().size() == 2);
-
- Module m1 = layer.findModule("m1").get();
- Module m2 = layer.findModule("m2").get();
-
- // check m1 exports p to m2
- assertFalse(m1.isExported("p"));
- assertTrue(m1.isExported("p", m2));
- assertFalse(m1.isOpen("p", m2));
- }
-
-
- /**
- * Test layers with a qualified export. The module exporting the package
- * does not read the target module in the parent layer.
- *
- * - Configuration/layer1: m1 { }
- * - Configuration/layer2: m2 { exports p to m1; }
- */
- public void testQualifiedExports3() {
- // create layer1 with m1
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
- Configuration cf1 = resolve(finder1, "m1");
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
- assertTrue(layer1.modules().size() == 1);
-
- // create layer2 with m2
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .exports("p", Set.of("m1"))
- .build();
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor2);
- Configuration cf2 = resolve(cf1, finder2, "m2");
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
- assertTrue(layer2.modules().size() == 1);
-
- Module m1 = layer1.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
-
- // check m2 exports p to layer1/m1
- assertFalse(m2.isExported("p"));
- assertTrue(m2.isExported("p", m1));
- assertFalse(m2.isOpen("p", m1));
- }
-
-
- /**
- * Test layers with a qualified export. The module exporting the package
- * reads the target module in the parent layer.
- *
- * - Configuration/layer1: m1 { }
- * - Configuration/layer2: m2 { requires m1; exports p to m1; }
- */
- public void testQualifiedExports4() {
- // create layer1 with m1
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
- Configuration cf1 = resolve(finder1, "m1");
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
- assertTrue(layer1.modules().size() == 1);
-
- // create layer2 with m2
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires("m1")
- .exports("p", Set.of("m1"))
- .build();
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor2);
- Configuration cf2 = resolve(cf1, finder2, "m2");
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
- assertTrue(layer2.modules().size() == 1);
-
- Module m1 = layer1.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
-
- // check m2 exports p to layer1/m1
- assertFalse(m2.isExported("p"));
- assertTrue(m2.isExported("p", m1));
- assertFalse(m2.isOpen("p", m1));
- }
-
- /**
- * Test layers with a qualified export. The module exporting the package
- * does not read the target module.
- *
- * - Configuration/layer1: m1
- * - Configuration/layer2: m1, m2 { exports p to m1; }
- */
- public void testQualifiedExports5() {
- // create layer1 with m1
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
- Configuration cf1 = resolve(finder1, "m1");
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
- assertTrue(layer1.modules().size() == 1);
-
- // create layer2 with m1 and m2
- ModuleDescriptor descriptor2 = newBuilder("m2").exports("p", Set.of("m1")).build();
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor1, descriptor2);
- Configuration cf2 = resolve(cf1, finder2, "m1", "m2");
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
- assertTrue(layer2.modules().size() == 2);
-
- Module m1_v1 = layer1.findModule("m1").get();
- Module m1_v2 = layer2.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
-
- // check m2 exports p to layer2/m2
- assertFalse(m2.isExported("p"));
- assertTrue(m2.isExported("p", m1_v2));
- assertFalse(m2.isExported("p", m1_v1));
- }
-
-
- /**
- * Test layers with a qualified export. The module exporting the package
- * reads the target module in the parent layer (due to requires transitive).
- *
- * - Configuration/layer1: m1, m2 { requires transitive m1; }
- * - Configuration/layer2: m1, m3 { requires m2; exports p to m1; }
- */
- public void testQualifiedExports6() {
- // create layer1 with m1 and m2
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .requires(Set.of(Requires.Modifier.TRANSITIVE), "m1")
- .build();
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1, descriptor2);
- Configuration cf1 = resolve(finder1, "m2");
- ClassLoader loader1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> loader1);
- assertTrue(layer1.modules().size() == 2);
-
- // create layer2 with m1 and m3
- ModuleDescriptor descriptor3 = newBuilder("m3")
- .requires("m2")
- .exports("p", Set.of("m1"))
- .build();
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor1, descriptor3);
- Configuration cf2 = resolve(cf1, finder2, "m1", "m3");
- ClassLoader loader2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> loader2);
- assertTrue(layer2.modules().size() == 2);
-
- Module m1_v1 = layer1.findModule("m1").get();
- Module m2 = layer1.findModule("m2").get();
-
- Module m1_v2 = layer2.findModule("m1").get();
- Module m3 = layer2.findModule("m3").get();
-
- assertTrue(m3.canRead(m1_v1));
- assertFalse(m3.canRead(m1_v2));
-
- assertFalse(m3.isExported("p"));
- assertTrue(m3.isExported("p", m1_v1));
- assertFalse(m3.isExported("p", m1_v2));
- assertFalse(m3.isExported("p", m2));
- }
-
-
- /**
- * Test layers with a qualified export. The target module is not in any layer.
- *
- * - Configuration/layer1: m1 { }
- * - Configuration/layer2: m2 { exports p to m3; }
- */
- public void testQualifiedExports7() {
- // create layer1 with m1
- ModuleDescriptor descriptor1 = newBuilder("m1").build();
- ModuleFinder finder1 = ModuleUtils.finderOf(descriptor1);
- Configuration cf1 = resolve(finder1, "m1");
- ClassLoader cl1 = new ClassLoader() { };
- Layer layer1 = Layer.empty().defineModules(cf1, mn -> cl1);
- assertTrue(layer1.modules().size() == 1);
-
- // create layer2 with m2
- ModuleDescriptor descriptor2 = newBuilder("m2")
- .exports("p", Set.of("m3"))
- .build();
- ModuleFinder finder2 = ModuleUtils.finderOf(descriptor2);
- Configuration cf2 = resolve(cf1, finder2, "m2");
- ClassLoader cl2 = new ClassLoader() { };
- Layer layer2 = layer1.defineModules(cf2, mn -> cl2);
- assertTrue(layer2.modules().size() == 1);
-
- Module m1 = layer1.findModule("m1").get();
- Module m2 = layer2.findModule("m2").get();
-
- // check m2 does not export p to anyone
- assertFalse(m2.isExported("p"));
- assertFalse(m2.isExported("p", m1));
- }
-
- /**
- * Attempt to use Layer defineModules to create a layer with a module
- * defined to a class loader that already has a module of the same name
- * defined to the class loader.
- */
- @Test(expectedExceptions = { LayerInstantiationException.class })
- public void testModuleAlreadyDefinedToLoader() {
-
- ModuleDescriptor md = newBuilder("m")
- .requires("java.base")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(md);
-
- Configuration parent = Layer.boot().configuration();
-
- Configuration cf = parent.resolve(finder, ModuleFinder.of(), Set.of("m"));
-
- ClassLoader loader = new ClassLoader() { };
-
- Layer.boot().defineModules(cf, mn -> loader);
-
- // should throw LayerInstantiationException as m1 already defined to loader
- Layer.boot().defineModules(cf, mn -> loader);
-
- }
-
-
- /**
- * Attempt to use Layer defineModules to create a Layer with a module
- * containing package {@code p} where the class loader already has a module
- * defined to it containing package {@code p}.
- */
- @Test(expectedExceptions = { LayerInstantiationException.class })
- public void testPackageAlreadyInNamedModule() {
-
- ModuleDescriptor md1 = newBuilder("m1")
- .packages(Set.of("p"))
- .requires("java.base")
- .build();
-
- ModuleDescriptor md2 = newBuilder("m2")
- .packages(Set.of("p"))
- .requires("java.base")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(md1, md2);
-
- ClassLoader loader = new ClassLoader() { };
-
- // define m1 containing package p to class loader
-
- Configuration parent = Layer.boot().configuration();
-
- Configuration cf1 = parent.resolve(finder, ModuleFinder.of(), Set.of("m1"));
-
- Layer layer1 = Layer.boot().defineModules(cf1, mn -> loader);
-
- // attempt to define m2 containing package p to class loader
-
- Configuration cf2 = parent.resolve(finder, ModuleFinder.of(), Set.of("m2"));
-
- // should throw exception because p already in m1
- Layer layer2 = Layer.boot().defineModules(cf2, mn -> loader);
-
- }
-
-
- /**
- * Attempt to use Layer defineModules to create a Layer with a module
- * containing a package in which a type is already loaded by the class
- * loader.
- */
- @Test(expectedExceptions = { LayerInstantiationException.class })
- public void testPackageAlreadyInUnnamedModule() throws Exception {
-
- Class<?> c = layertest.Test.class;
- assertFalse(c.getModule().isNamed()); // in unnamed module
-
- ModuleDescriptor md = newBuilder("m")
- .packages(Set.of(c.getPackageName()))
- .requires("java.base")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(md);
-
- Configuration parent = Layer.boot().configuration();
- Configuration cf = parent.resolve(finder, ModuleFinder.of(), Set.of("m"));
-
- Layer.boot().defineModules(cf, mn -> c.getClassLoader());
- }
-
-
- /**
- * Attempt to create a Layer with a module named "java.base".
- */
- public void testLayerWithJavaBase() {
- ModuleDescriptor descriptor = newBuilder("java.base")
- .exports("java.lang")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(descriptor);
-
- Configuration cf = Layer.boot()
- .configuration()
- .resolve(finder, ModuleFinder.of(), Set.of("java.base"));
- assertTrue(cf.modules().size() == 1);
-
- ClassLoader scl = ClassLoader.getSystemClassLoader();
-
- try {
- Layer.boot().defineModules(cf, mn -> new ClassLoader() { });
- assertTrue(false);
- } catch (LayerInstantiationException e) { }
-
- try {
- Layer.boot().defineModulesWithOneLoader(cf, scl);
- assertTrue(false);
- } catch (LayerInstantiationException e) { }
-
- try {
- Layer.boot().defineModulesWithManyLoaders(cf, scl);
- assertTrue(false);
- } catch (LayerInstantiationException e) { }
- }
-
-
- @DataProvider(name = "javaPackages")
- public Object[][] javaPackages() {
- return new Object[][] { { "m1", "java" }, { "m2", "java.x" } };
- }
-
- /**
- * Attempt to create a Layer with a module containing a "java" package.
- * This should only be allowed when the module is defined to the platform
- * class loader.
- */
- @Test(dataProvider = "javaPackages")
- public void testLayerWithJavaPackage(String mn, String pn) {
- ModuleDescriptor descriptor = newBuilder(mn).packages(Set.of(pn)).build();
- ModuleFinder finder = ModuleUtils.finderOf(descriptor);
-
- Configuration cf = Layer.boot()
- .configuration()
- .resolve(finder, ModuleFinder.of(), Set.of(mn));
- assertTrue(cf.modules().size() == 1);
-
- ClassLoader pcl = ClassLoader.getPlatformClassLoader();
- ClassLoader scl = ClassLoader.getSystemClassLoader();
-
- try {
- Layer.boot().defineModules(cf, _mn -> new ClassLoader() { });
- assertTrue(false);
- } catch (LayerInstantiationException e) { }
-
- try {
- Layer.boot().defineModulesWithOneLoader(cf, scl);
- assertTrue(false);
- } catch (LayerInstantiationException e) { }
-
- try {
- Layer.boot().defineModulesWithManyLoaders(cf, scl);
- assertTrue(false);
- } catch (LayerInstantiationException e) { }
-
- // create layer with module defined to platform class loader
- Layer layer = Layer.boot().defineModules(cf, _mn -> pcl);
- Optional<Module> om = layer.findModule(mn);
- assertTrue(om.isPresent());
- Module foo = om.get();
- assertTrue(foo.getClassLoader() == pcl);
- assertTrue(foo.getPackages().length == 1);
- assertTrue(foo.getPackages()[0].equals(pn));
- }
-
-
- /**
- * Attempt to create a Layer with a module defined to the boot loader
- */
- @Test(expectedExceptions = { LayerInstantiationException.class })
- public void testLayerWithBootLoader() {
- ModuleDescriptor descriptor = newBuilder("m1")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(descriptor);
-
- Configuration cf = Layer.boot()
- .configuration()
- .resolve(finder, ModuleFinder.of(), Set.of("m1"));
- assertTrue(cf.modules().size() == 1);
-
- Layer.boot().defineModules(cf, mn -> null );
- }
-
-
- /**
- * Parent of configuration != configuration of parent Layer
- */
- @Test(expectedExceptions = { IllegalArgumentException.class })
- public void testIncorrectParent1() {
-
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .requires("java.base")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(descriptor1);
-
- Configuration parent = Layer.boot().configuration();
- Configuration cf = parent.resolve(finder, ModuleFinder.of(), Set.of("m1"));
-
- ClassLoader loader = new ClassLoader() { };
- Layer.empty().defineModules(cf, mn -> loader);
- }
-
-
- /**
- * Parent of configuration != configuration of parent Layer
- */
- @Test(expectedExceptions = { IllegalArgumentException.class })
- public void testIncorrectParent2() {
-
- ModuleDescriptor descriptor1 = newBuilder("m1")
- .build();
-
- ModuleFinder finder = ModuleUtils.finderOf(descriptor1);
-
- Configuration cf = resolve(finder, "m1");
-
- ClassLoader loader = new ClassLoader() { };
- Layer.boot().defineModules(cf, mn -> loader);
- }
-
-
- // null handling
-
- @Test(expectedExceptions = { NullPointerException.class })
- public void testCreateWithNull1() {
- ClassLoader loader = new ClassLoader() { };
- Layer.empty().defineModules(null, mn -> loader);
- }
-
- @Test(expectedExceptions = { NullPointerException.class })
- public void testCreateWithNull2() {
- Configuration cf = resolve(Layer.boot().configuration(), ModuleFinder.of());
- Layer.boot().defineModules(cf, null);
- }
-
- @Test(expectedExceptions = { NullPointerException.class })
- public void testCreateWithNull3() {
- ClassLoader scl = ClassLoader.getSystemClassLoader();
- Layer.empty().defineModulesWithOneLoader(null, scl);
- }
-
- @Test(expectedExceptions = { NullPointerException.class })
- public void testCreateWithNull4() {
- ClassLoader scl = ClassLoader.getSystemClassLoader();
- Layer.empty().defineModulesWithManyLoaders(null, scl);
- }
-
- @Test(expectedExceptions = { NullPointerException.class })
- public void testFindModuleWithNull() {
- Layer.boot().findModule(null);
- }
-
- @Test(expectedExceptions = { NullPointerException.class })
- public void testFindLoaderWithNull() {
- Layer.boot().findLoader(null);
- }
-
-
- // immutable sets
-
- @Test(expectedExceptions = { UnsupportedOperationException.class })
- public void testImmutableSet() {
- Module base = Object.class.getModule();
- Layer.boot().modules().add(base);
- }
-
-
- /**
- * Resolve the given modules, by name, and returns the resulting
- * Configuration.
- */
- private static Configuration resolve(Configuration cf,
- ModuleFinder finder,
- String... roots) {
- return cf.resolve(finder, ModuleFinder.of(), Set.of(roots));
- }
-
- private static Configuration resolve(ModuleFinder finder,
- String... roots) {
- return resolve(Configuration.empty(), finder, roots);
- }
-}