| /* |
| * Copyright (c) 2015, 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.File; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.nio.file.Files; |
| import java.security.AllPermission; |
| import java.security.Permissions; |
| import java.security.ProtectionDomain; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| |
| /** |
| * A custom ClassLoader to load the concrete LoggerFinder class |
| * with all permissions. The CustomSystemClassLoader class must be |
| * in the BCL, otherwise when system classes - such as |
| * ZoneDateTime try to load their resource bundle a MissingResourceBundle |
| * caused by a SecurityException may be thrown, as the CustomSystemClassLoader |
| * code base will be found in the stack called by doPrivileged. |
| * |
| * @author danielfuchs |
| */ |
| public class CustomSystemClassLoader extends ClassLoader { |
| |
| |
| final List<String> finderClassNames = |
| Arrays.asList("BaseDefaultLoggerFinderTest$BaseLoggerFinder"); |
| final Map<String, Class<?>> finderClasses = new HashMap<>(); |
| Class<?> testLoggerFinderClass; |
| |
| public CustomSystemClassLoader() { |
| super(); |
| } |
| public CustomSystemClassLoader(ClassLoader parent) { |
| super(parent); |
| } |
| |
| private Class<?> defineFinderClass(String name) |
| throws ClassNotFoundException { |
| final Object obj = getClassLoadingLock(name); |
| synchronized(obj) { |
| if (finderClasses.get(name) != null) return finderClasses.get(name); |
| if (testLoggerFinderClass == null) { |
| // Hack: we load testLoggerFinderClass to get its code source. |
| // we can't use this.getClass() since we are in the boot. |
| testLoggerFinderClass = super.loadClass("BaseDefaultLoggerFinderTest$TestLoggerFinder"); |
| } |
| URL url = testLoggerFinderClass.getProtectionDomain().getCodeSource().getLocation(); |
| File file = new File(url.getPath(), name+".class"); |
| if (file.canRead()) { |
| try { |
| byte[] b = Files.readAllBytes(file.toPath()); |
| Permissions perms = new Permissions(); |
| perms.add(new AllPermission()); |
| Class<?> finderClass = defineClass( |
| name, b, 0, b.length, new ProtectionDomain( |
| this.getClass().getProtectionDomain().getCodeSource(), |
| perms)); |
| System.out.println("Loaded " + name); |
| finderClasses.put(name, finderClass); |
| return finderClass; |
| } catch (Throwable ex) { |
| ex.printStackTrace(); |
| throw new ClassNotFoundException(name, ex); |
| } |
| } else { |
| throw new ClassNotFoundException(name, |
| new IOException(file.toPath() + ": can't read")); |
| } |
| } |
| } |
| |
| @Override |
| public synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException { |
| if (finderClassNames.contains(name)) { |
| Class<?> c = defineFinderClass(name); |
| if (resolve) { |
| resolveClass(c); |
| } |
| return c; |
| } |
| return super.loadClass(name, resolve); |
| } |
| |
| @Override |
| protected Class<?> findClass(String name) throws ClassNotFoundException { |
| if (finderClassNames.contains(name)) { |
| return defineFinderClass(name); |
| } |
| return super.findClass(name); |
| } |
| |
| } |