/* * Copyright (c) 2016, 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 /test/lib * @build LayerControllerTest * jdk.test.lib.util.ModuleUtils * @run testng LayerControllerTest * @summary Basic tests for java.lang.ModuleLayer.Controller */ import java.lang.module.Configuration; import java.lang.module.ModuleDescriptor; import java.lang.module.ModuleFinder; import java.util.List; import java.util.Set; import jdk.test.lib.util.ModuleUtils; import org.testng.annotations.Test; import static org.testng.Assert.*; @Test public class LayerControllerTest { /** * Creates a Controller for a module layer containing modules m1 and m2. * Module m1 contains p1, reads java.base, does not export/open any package * Module m2 contains p2, reads java.base, does not export/open any package */ private ModuleLayer.Controller createTestLayer() { ModuleDescriptor descriptor1 = ModuleDescriptor.newModule("m1") .packages(Set.of("p1")) .requires("java.base") .build(); ModuleDescriptor descriptor2 = ModuleDescriptor.newModule("m2") .requires("java.base") .packages(Set.of("p2")) .build(); ModuleDescriptor descriptor3 = ModuleDescriptor.newModule("m3") .requires("java.base") .packages(Set.of("p3")) .build(); ModuleFinder finder = ModuleUtils.finderOf(descriptor1, descriptor2, descriptor3); ModuleLayer bootLayer = ModuleLayer.boot(); Configuration cf = bootLayer.configuration() .resolve(finder, ModuleFinder.of(), Set.of("m1", "m2", "m3")); ClassLoader scl = ClassLoader.getSystemClassLoader(); ModuleLayer.Controller controller = ModuleLayer.defineModulesWithOneLoader(cf, List.of(bootLayer), scl); ModuleLayer layer = controller.layer(); assertTrue(layer.modules().size() == 3); assertTrue(layer.findModule("m1").isPresent()); assertTrue(layer.findModule("m2").isPresent()); assertTrue(layer.findModule("m3").isPresent()); return controller; } /** * Basic test of Controller to update modules m1 and m2 to read and * open packages to each other. */ public void testBasic() { ModuleLayer.Controller controller = createTestLayer(); ModuleLayer layer = controller.layer(); Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new); Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new); Module m3 = layer.findModule("m3").orElseThrow(RuntimeException::new); assertFalse(m1.canRead(m2)); assertFalse(m1.canRead(m3)); assertFalse(m1.isExported("p1")); assertFalse(m1.isOpen("p1")); assertFalse(m1.isExported("p1", m2)); assertFalse(m1.isExported("p1", m3)); assertFalse(m1.isOpen("p1", m2)); assertFalse(m1.isOpen("p1", m3)); assertFalse(m2.canRead(m1)); assertFalse(m2.canRead(m3)); assertFalse(m2.isExported("p2")); assertFalse(m2.isOpen("p2")); assertFalse(m2.isExported("p2", m1)); assertFalse(m2.isExported("p2", m3)); assertFalse(m2.isOpen("p2", m1)); assertFalse(m2.isOpen("p2", m3)); assertFalse(m3.canRead(m1)); assertFalse(m3.canRead(m2)); assertFalse(m3.isExported("p3")); assertFalse(m3.isOpen("p3")); assertFalse(m3.isExported("p3", m1)); assertFalse(m3.isExported("p3", m2)); assertFalse(m3.isOpen("p3", m1)); assertFalse(m3.isOpen("p3", m2)); // update m1 to read m2 assertTrue(controller.addReads(m1, m2) == controller); assertTrue(m1.canRead(m2)); assertFalse(m2.canRead(m1)); // update m2 to read m1 assertTrue(controller.addReads(m2, m1) == controller); assertTrue(m1.canRead(m2)); assertTrue(m1.canRead(m1)); // update m1 to export p1 to m2 assertTrue(controller.addExports(m1, "p1", m2) == controller); assertTrue(m1.isExported("p1", m2)); assertFalse(m1.isOpen("p1", m2)); assertFalse(m1.isExported("p1")); assertFalse(m1.isOpen("p1")); // update m3 to open p3 to m1 assertTrue(controller.addExports(m3, "p3", m1) == controller); assertTrue(m3.isExported("p3", m1)); assertFalse(m3.isOpen("p3", m1)); assertFalse(m3.isExported("p3")); assertFalse(m3.isOpen("p3")); // update m1 to open p1 to m3 assertTrue(controller.addOpens(m1, "p1", m3) == controller); assertTrue(m1.isExported("p1", m3)); assertTrue(m1.isOpen("p1", m3)); assertFalse(m1.isExported("p1")); assertFalse(m1.isOpen("p1")); // update m3 to open p3 to m1 assertTrue(controller.addOpens(m3, "p3", m1) == controller); assertTrue(m3.isExported("p3", m1)); assertTrue(m3.isOpen("p3", m1)); assertFalse(m3.isExported("p3")); assertFalse(m3.isOpen("p3")); } /** * Test invalid argument handling */ public void testBadArguments() { ModuleLayer.Controller controller = createTestLayer(); ModuleLayer layer = controller.layer(); Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new); Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new); Module base = Object.class.getModule(); // java.base is not in layer try { controller.addReads(base, m2); assertTrue(false); } catch (IllegalArgumentException expected) { } // java.base is not in layer try { controller.addExports(base, "java.lang", m2); assertTrue(false); } catch (IllegalArgumentException expected) { } // m1 does not contain java.lang try { controller.addExports(m1, "java.lang", m2); assertTrue(false); } catch (IllegalArgumentException expected) { } // java.base is not in layer try { controller.addOpens(base, "java.lang", m2); assertTrue(false); } catch (IllegalArgumentException expected) { } // m1 does not contain java.lang try { controller.addOpens(m1, "java.lang", m2); assertTrue(false); } catch (IllegalArgumentException expected) { } } /** * Test null handling */ public void testNulls() { ModuleLayer.Controller controller = createTestLayer(); ModuleLayer layer = controller.layer(); Module m1 = layer.findModule("m1").orElseThrow(RuntimeException::new); Module m2 = layer.findModule("m2").orElseThrow(RuntimeException::new); assertTrue(m1 != null); assertTrue(m2 != null); try { controller.addReads(null, m2); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addReads(m1, null); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addExports(null, "p1", m2); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addExports(m1, null, m2); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addExports(m1, "p1", null); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addOpens(null, "p1", m2); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addOpens(m1, null, m2); assertTrue(false); } catch (NullPointerException expected) { } try { controller.addOpens(m1, "p1", null); assertTrue(false); } catch (NullPointerException expected) { } } }