NuxeoRMIClassLoader.java

/*
 * (C) Copyright 2006 JBoss.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser General Public License
 * (LGPL) version 2.1 which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/lgpl-2.1.html
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * Contributors:
 *     JBoss
 *     Nuxeo
 */

package org.nuxeo.runtime.launcher;

import java.net.MalformedURLException;
import java.rmi.server.RMIClassLoader;
import java.rmi.server.RMIClassLoaderSpi;

/**
 * Copied from org.jboss.system.JBossRMIClassLoader and modified getClassAnnotation to avoid delegating to default
 * loader since it has a bug.
 *
 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
 */
public class NuxeoRMIClassLoader extends RMIClassLoaderSpi {
    // Attributes ----------------------------------------------------

    /**
     * The JVM implementation (we delegate most work to it)
     */
    RMIClassLoaderSpi delegate = RMIClassLoader.getDefaultProviderInstance();

    // Constructors --------------------------------------------------

    /**
     * Required constructor
     */
    public NuxeoRMIClassLoader() {
    }

    // RMIClassLoaderSpi Implementation ------------------------------

    /**
     * Ignore the JVM, use the thread context classloader for proxy caching
     */
    public Class<?> loadProxyClass(String codebase, String[] interfaces, ClassLoader ignored)
            throws MalformedURLException, ClassNotFoundException {
        return delegate.loadProxyClass(codebase, interfaces, Thread.currentThread().getContextClassLoader());
    }

    /**
     * Just delegate
     */
    public Class<?> loadClass(String codebase, String name, ClassLoader ignored) throws MalformedURLException,
            ClassNotFoundException {
        return delegate.loadClass(codebase, name, Thread.currentThread().getContextClassLoader());
    }

    /**
     * Just delegate
     */
    public ClassLoader getClassLoader(String codebase) throws MalformedURLException {
        return delegate.getClassLoader(codebase);
    }

    /**
     * Try to delegate an default to the java.rmi.server.codebase on any failure.
     */
    public String getClassAnnotation(Class<?> cl) {
        return System.getProperty("java.rmi.server.codebase");
    }
}