| /* |
| * Copyright (c) 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. |
| */ |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.module.ModuleReader; |
| import java.lang.module.ModuleReference; |
| import java.lang.module.ResolvedModule; |
| import java.net.URL; |
| import java.util.Enumeration; |
| |
| /** |
| * Usage: Main $MODULE |
| * |
| * Finds $MODULE in the boot layer and then tests that it can locate every |
| * resource in the module content (JAR file). |
| */ |
| |
| public class Main { |
| |
| static void testFind(String name) throws Exception { |
| // getResource |
| URL url = Main.class.getClassLoader().getResource(name); |
| if (url == null) |
| throw new RuntimeException("Unable to locate: " + name); |
| System.out.println(name + " => " + url); |
| |
| // getResources |
| Enumeration<URL> urls = Main.class.getClassLoader().getResources(name); |
| if (!urls.hasMoreElements()) |
| throw new RuntimeException("Unable to locate: " + name); |
| URL first = urls.nextElement(); |
| if (!first.toURI().equals(url.toURI())) |
| throw new RuntimeException("found " + first + " ???"); |
| |
| // getResourceAsStream |
| if (!url.toString().endsWith("/")) { |
| InputStream in = Main.class.getClassLoader().getResourceAsStream(name); |
| if (in == null) |
| throw new RuntimeException("Unable to locate: " + name); |
| in.close(); |
| } |
| } |
| |
| static void testFindUnchecked(String name) { |
| try { |
| testFind(name); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| String mn = args[0]; |
| |
| ModuleReference mref = ModuleLayer.boot() |
| .configuration() |
| .findModule(mn) |
| .map(ResolvedModule::reference) |
| .orElseThrow(() -> new RuntimeException(mn + " not resolved!!")); |
| |
| try (ModuleReader reader = mref.open()) { |
| reader.list().forEach(name -> { |
| testFindUnchecked(name); |
| |
| // if the resource is a directory then find without trailing slash |
| if (name.endsWith("/")) { |
| testFindUnchecked(name.substring(0, name.length() - 1)); |
| } |
| }); |
| } |
| } |
| } |