diff -r 2c33418a6d57 -r 83b611b88ac8 jdk/test/java/lang/ModuleTests/AnnotationsTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/test/java/lang/ModuleTests/AnnotationsTest.java Fri Apr 07 08:05:54 2017 +0000 @@ -0,0 +1,154 @@ +/* + * 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. + */ + +import java.io.IOException; +import java.io.InputStream; +import java.lang.annotation.Annotation; +import java.lang.module.Configuration; +import java.lang.module.ModuleFinder; +import java.nio.file.Files; +import java.nio.file.Path; + +import java.util.ArrayList; +import java.util.List; +import java.util.Set; + +import jdk.internal.module.ClassFileAttributes; +import jdk.internal.org.objectweb.asm.AnnotationVisitor; +import jdk.internal.org.objectweb.asm.Attribute; +import jdk.internal.org.objectweb.asm.ClassReader; +import jdk.internal.org.objectweb.asm.ClassVisitor; +import jdk.internal.org.objectweb.asm.ClassWriter; +import jdk.internal.org.objectweb.asm.Opcodes; + +import org.testng.annotations.Test; +import static org.testng.Assert.*; + +/** + * @test + * @modules java.base/jdk.internal.org.objectweb.asm + * java.base/jdk.internal.module + * java.xml + * @run testng AnnotationsTest + * @summary Basic test of annotations on modules + */ + +public class AnnotationsTest { + + /** + * Test that there are no annotations on an unnamed module. + */ + @Test + public void testUnnamedModule() { + Module module = this.getClass().getModule(); + assertTrue(module.getAnnotations().length == 0); + } + + /** + * Test loading a module with a RuntimeVisibleAnnotation attribute. + * The test copies the module-info.class for java.xml, adds the attribute, + * and then loads the updated module. + */ + @Test + public void testNamedModule() throws IOException { + + // "deprecate" java.xml + Path dir = Files.createTempDirectory("mods"); + deprecateModule("java.xml", true, "9", dir); + + // "load" the cloned java.xml + Module module = loadModule(dir, "java.xml"); + + // check the annotation is present + assertTrue(module.isAnnotationPresent(Deprecated.class)); + Deprecated d = module.getAnnotation(Deprecated.class); + assertNotNull(d, "@Deprecated not found"); + assertTrue(d.forRemoval()); + assertEquals(d.since(), "9"); + Annotation[] a = module.getAnnotations(); + assertTrue(a.length == 1); + assertTrue(a[0] instanceof Deprecated); + } + + + /** + * Copy the module-info.class for the given module, add the + * Deprecated annotation, and write the updated module-info.class + * to a directory. + */ + static void deprecateModule(String name, + boolean forRemoval, + String since, + Path output) throws IOException { + Module module = ModuleLayer.boot().findModule(name).orElse(null); + assertNotNull(module, name + " not found"); + + InputStream in = module.getResourceAsStream("module-info.class"); + assertNotNull(in, "No module-info.class for " + name); + + try (in) { + ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + + ClassWriter.COMPUTE_FRAMES); + + ClassVisitor cv = new ClassVisitor(Opcodes.ASM5, cw) { }; + + ClassReader cr = new ClassReader(in); + + List attrs = new ArrayList<>(); + attrs.add(new ClassFileAttributes.ModuleAttribute()); + attrs.add(new ClassFileAttributes.ModulePackagesAttribute()); + attrs.add(new ClassFileAttributes.ModuleTargetAttribute()); + cr.accept(cv, attrs.toArray(new Attribute[0]), 0); + + AnnotationVisitor annotationVisitor + = cv.visitAnnotation("Ljava/lang/Deprecated;", true); + annotationVisitor.visit("forRemoval", forRemoval); + annotationVisitor.visit("since", since); + annotationVisitor.visitEnd(); + + byte[] bytes = cw.toByteArray(); + Path mi = output.resolve("module-info.class"); + Files.write(mi, bytes); + } + } + + /** + * Load the module of the given name in the given directory into a + * child layer. + */ + static Module loadModule(Path dir, String name) throws IOException { + ModuleFinder finder = ModuleFinder.of(dir); + + ModuleLayer bootLayer = ModuleLayer.boot(); + + Configuration cf = bootLayer.configuration() + .resolve(finder, ModuleFinder.of(), Set.of(name)); + + ClassLoader scl = ClassLoader.getSystemClassLoader(); + ModuleLayer layer = bootLayer.defineModulesWithOneLoader(cf, scl); + + Module module = layer.findModule(name).orElse(null); + assertNotNull(module, name + " not loaded"); + return module; + } +}