author | phh |
Sat, 30 Nov 2019 14:33:05 -0800 | |
changeset 59330 | 5b96c12f909d |
parent 47488 | 2af7932c2f6f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.lang.annotation.Annotation; |
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import java.lang.module.Configuration; |
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import java.lang.module.ModuleFinder; |
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import java.nio.file.Files; |
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import java.nio.file.Path; |
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import java.nio.file.Paths; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Set; |
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import jdk.internal.org.objectweb.asm.AnnotationVisitor; |
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import jdk.internal.org.objectweb.asm.Attribute; |
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import jdk.internal.org.objectweb.asm.ClassReader; |
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import jdk.internal.org.objectweb.asm.ClassVisitor; |
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import jdk.internal.org.objectweb.asm.ClassWriter; |
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import jdk.internal.org.objectweb.asm.Opcodes; |
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import jdk.internal.org.objectweb.asm.commons.ModuleTargetAttribute; |
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import org.testng.annotations.Test; |
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import static org.testng.Assert.*; |
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/** |
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* @test |
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* @modules java.base/jdk.internal.org.objectweb.asm |
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* java.base/jdk.internal.org.objectweb.asm.commons |
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* java.base/jdk.internal.module |
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* java.xml |
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* @run testng AnnotationsTest |
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* @summary Basic test of annotations on modules |
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*/ |
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public class AnnotationsTest { |
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/** |
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* Test that there are no annotations on an unnamed module. |
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*/ |
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@Test |
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public void testUnnamedModule() { |
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Module module = this.getClass().getModule(); |
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assertTrue(module.getAnnotations().length == 0); |
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assertTrue(module.getDeclaredAnnotations().length == 0); |
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} |
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/** |
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* Test loading a module with a RuntimeVisibleAnnotation attribute. |
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* The test copies the module-info.class for java.xml, adds the attribute, |
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* and then loads the updated module. |
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*/ |
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@Test |
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public void testNamedModule() throws IOException { |
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// "deprecate" java.xml |
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Path dir = Files.createTempDirectory(Paths.get(""), "mods"); |
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deprecateModule("java.xml", true, "9", dir); |
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// "load" the cloned java.xml |
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Module module = loadModule(dir, "java.xml"); |
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// check the annotation is present |
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assertTrue(module.isAnnotationPresent(Deprecated.class)); |
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Deprecated d = module.getAnnotation(Deprecated.class); |
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assertNotNull(d, "@Deprecated not found"); |
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assertTrue(d.forRemoval()); |
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assertEquals(d.since(), "9"); |
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Annotation[] a = module.getAnnotations(); |
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assertTrue(a.length == 1); |
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assertTrue(a[0] instanceof Deprecated); |
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assertEquals(module.getDeclaredAnnotations(), a); |
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} |
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/** |
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* Copy the module-info.class for the given module, add the |
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* Deprecated annotation, and write the updated module-info.class |
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* to a directory. |
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*/ |
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static void deprecateModule(String name, |
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boolean forRemoval, |
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String since, |
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Path output) throws IOException { |
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Module module = ModuleLayer.boot().findModule(name).orElse(null); |
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assertNotNull(module, name + " not found"); |
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InputStream in = module.getResourceAsStream("module-info.class"); |
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assertNotNull(in, "No module-info.class for " + name); |
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try (in) { |
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ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS |
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+ ClassWriter.COMPUTE_FRAMES); |
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ClassVisitor cv = new ClassVisitor(Opcodes.ASM6, cw) { }; |
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ClassReader cr = new ClassReader(in); |
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List<Attribute> attrs = new ArrayList<>(); |
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attrs.add(new ModuleTargetAttribute()); |
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cr.accept(cv, attrs.toArray(new Attribute[0]), 0); |
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AnnotationVisitor annotationVisitor |
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= cv.visitAnnotation("Ljava/lang/Deprecated;", true); |
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annotationVisitor.visit("forRemoval", forRemoval); |
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annotationVisitor.visit("since", since); |
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annotationVisitor.visitEnd(); |
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byte[] bytes = cw.toByteArray(); |
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Path mi = output.resolve("module-info.class"); |
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Files.write(mi, bytes); |
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} |
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} |
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/** |
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* Load the module of the given name in the given directory into a |
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* child layer. |
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*/ |
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static Module loadModule(Path dir, String name) throws IOException { |
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ModuleFinder finder = ModuleFinder.of(dir); |
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ModuleLayer bootLayer = ModuleLayer.boot(); |
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Configuration cf = bootLayer.configuration() |
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.resolve(finder, ModuleFinder.of(), Set.of(name)); |
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ClassLoader scl = ClassLoader.getSystemClassLoader(); |
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ModuleLayer layer = bootLayer.defineModulesWithOneLoader(cf, scl); |
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Module module = layer.findModule(name).orElse(null); |
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assertNotNull(module, name + " not loaded"); |
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return module; |
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} |
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} |