Here you can find the source of loadClass(String className, ClassLoader classLoader)
public static Class<?> loadClass(String className, ClassLoader classLoader) throws ClassNotFoundException
//package com.java2s; /**// www . ja v a2 s . c om * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. */ public class Main { public static Class<?> loadClass(String className, ClassLoader classLoader) throws ClassNotFoundException { Class<?> objectClass; try { objectClass = Class.forName(className); } catch (ClassNotFoundException e) { if (classLoader != null) { objectClass = classLoader.loadClass(className); } else { throw e; } } return objectClass; } }