| /* DefaultLoaderRepository.java -- Manages class loaders for the servers. |
| Copyright (C) 2007 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package javax.management; |
| |
| import java.util.List; |
| |
| /** |
| * Maintains a list of the {@link ClassLoader} instances |
| * registered with the management servers, allowing it |
| * to be used to load classes. In early versions of the |
| * JMX API, this class represented a shared repository for |
| * the classloaders of all management servers. The management |
| * of classloaders is now decentralised and this class is |
| * deprecated. The old behaviour is emulated by consulting |
| * the {@link MBeanServer#getClassLoaderRepository()} method |
| * of all the servers obtained from |
| * {@link MBeanServerFactory#findMBeanServer(String)}. Use of |
| * this class should be avoided in new code. |
| * |
| * @author Andrew John Hughes (gnu_andrew@member.fsf.org) |
| * @since 1.5 |
| * @deprecated Use {@link MBeanServer#getClassLoaderRepository()} |
| * instead. |
| */ |
| @Deprecated public class DefaultLoaderRepository |
| { |
| |
| /** |
| * Attempts to load the given class using class loaders |
| * supplied by the repository of each {@link MBeanServer}. |
| * The {@link ClassLoader#loadClass(String)} |
| * method of each class loader is called. If the method |
| * returns successfully, then the returned {@link Class} instance |
| * is returned. If a {@link ClassNotFoundException} is thrown, |
| * then the next loader is tried. Any other exception thrown |
| * by the method is passed back to the caller. This method |
| * throws a {@link ClassNotFoundException} itself if all the |
| * class loaders listed prove fruitless. |
| * |
| * @param name the name of the class to load. |
| * @return the loaded class. |
| * @throws ClassNotFoundException if all the class loaders fail |
| * to load the class. |
| */ |
| // API issue with lack of <?> on Class |
| @SuppressWarnings("rawtypes") |
| public static Class loadClass(String name) |
| throws ClassNotFoundException |
| { |
| List<MBeanServer> servers = MBeanServerFactory.findMBeanServer(null); |
| for (MBeanServer server : servers) |
| { |
| try |
| { |
| return server.getClassLoaderRepository().loadClass(name); |
| } |
| catch (ClassNotFoundException e) |
| { |
| /* Ignored; try the next server. */ |
| } |
| } |
| throw new ClassNotFoundException("The class loaders of all registered " + |
| "servers failed to load the class, " + |
| name); |
| } |
| |
| /** |
| * <p> |
| * Attempts to load the given class using class loaders |
| * supplied by the repository of each {@link MBeanServer}. |
| * The {@link ClassLoader#loadClass(String)} |
| * method of each class loader is called. If the method |
| * returns successfully, then the returned {@link Class} instance |
| * is returned. If a {@link ClassNotFoundException} is thrown, |
| * then the next loader is tried. Any other exception thrown |
| * by the method is passed back to the caller. This method |
| * throws a {@link ClassNotFoundException} itself if all the |
| * class loaders listed prove fruitless. |
| * </p> |
| * <p> |
| * Note that this method may deadlock if called simultaneously |
| * by two class loaders in the list. |
| * {@link loadClassBefore(ClassLoader, String)} should be used |
| * in preference to this method to avoid this. |
| * </p> |
| * |
| * @param exclude the class loader to exclude, or <code>null</code> |
| * to obtain the same behaviour as {@link #loadClass(String)}. |
| * @param name the name of the class to load. |
| * @return the loaded class. |
| * @throws ClassNotFoundException if all the class loaders fail |
| * to load the class. |
| */ |
| // API issue with lack of <?> on Class |
| @SuppressWarnings("rawtypes") |
| public static Class loadClassWithout(ClassLoader exclude, String name) |
| throws ClassNotFoundException |
| { |
| List<MBeanServer> servers = MBeanServerFactory.findMBeanServer(null); |
| for (MBeanServer server : servers) |
| { |
| try |
| { |
| return server.getClassLoaderRepository().loadClassWithout(exclude, |
| name); |
| } |
| catch (ClassNotFoundException e) |
| { |
| /* Ignored; try the next server. */ |
| } |
| } |
| throw new ClassNotFoundException("The class loaders of all registered " + |
| "servers failed to load the class, " + |
| name); |
| } |
| |
| } |