Here you can find the source of loadClass(String name, Object fallbackClass)
@SuppressWarnings("unchecked") public static Class loadClass(String name, Object fallbackClass) throws ClassNotFoundException
//package com.java2s; /*//from w w w.j av a 2 s . c o m * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can obtain * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt. * Sun designates this particular file as subject to the "Classpath" exception * as provided by Sun in the GPL Version 2 section of the License file that * accompanied this code. If applicable, add the following below the License * Header, with the fields enclosed by brackets [] replaced by your own * identifying information: "Portions Copyrighted [year] * [name of copyright owner]" * * Contributor(s): * * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ public class Main { @SuppressWarnings("unchecked") public static Class loadClass(String name, Object fallbackClass) throws ClassNotFoundException { ClassLoader loader = getCurrentLoader(fallbackClass); return Class.forName(name, false, loader); } public static ClassLoader getCurrentLoader(Object fallbackClass) { ClassLoader loader = Thread.currentThread().getContextClassLoader(); if (loader == null) { loader = fallbackClass.getClass().getClassLoader(); } return loader; } }