/* * Copyright (c) 2016, 2020, 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 * @modules java.base/jdk.internal.org.objectweb.asm * java.base/jdk.internal.org.objectweb.asm.commons * java.base/jdk.internal.module * @run testng AnnotationsTest * @summary Basic test of annotations on modules
*/
publicclass AnnotationsTest {
/** * Test that there are no annotations on an unnamed module.
*/
@Test publicvoid testUnnamedModule() {
Module module = this.getClass().getModule();
assertTrue(module.getAnnotations().length == 0);
assertTrue(module.getDeclaredAnnotations().length == 0);
}
/** * Test reflectively reading the annotations on a named module.
*/
@Test publicvoid testNamedModule() throws IOException {
Path mods = Files.createTempDirectory(Path.of(""), "mods");
// 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);
assertEquals(module.getDeclaredAnnotations(), a);
}
/** * Test reflectively reading annotations on a named module where the module * is mapped to a class loader that can locate a module-info.class.
*/
@Test publicvoid testWithModuleInfoResourceXXXX() throws IOException {
Path mods = Files.createTempDirectory(Path.of(""), "mods");
// classes directory with module-info.class
Path classes = Files.createTempDirectory(Path.of("."), "classes");
Path mi = classes.resolve("module-info.class"); try (OutputStream out = Files.newOutputStream(mi)) {
ModuleDescriptor descriptor = ModuleDescriptor.newModule("lurker").build();
ModuleInfoWriter.write(descriptor, out);
}
// URLClassLoader that can locate a module-info.class resource
URL url = classes.toUri().toURL();
URLClassLoader loader = new URLClassLoader(new URL[] { url });
assertTrue(loader.findResource("module-info.class") != null);
// create module layer with module bar
Module bar = loadModule(mods, "bar", loader);
// check the annotation is present
assertTrue(bar.isAnnotationPresent(Deprecated.class));
}
/** * Adds the Deprecated annotation to the given module-info class file.
*/ staticbyte[] addDeprecated(byte[] bytes, boolean forRemoval, String since) {
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS
+ ClassWriter.COMPUTE_FRAMES);
ClassVisitor cv = new ClassVisitor(Opcodes.ASM6, cw) { };
ClassReader cr = new ClassReader(bytes);
List<Attribute> attrs = new ArrayList<>();
attrs.add(new ModuleTargetAttribute());
cr.accept(cv, attrs.toArray(new Attribute[0]), 0);
/** * Load the module of the given name in the given directory into a * child layer with the given class loader as the parent class loader.
*/ static Module loadModule(Path dir, String name, ClassLoader parent) throws IOException
{
ModuleFinder finder = ModuleFinder.of(dir);
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