Here you can find the source of forName(String className)
protected static Class<?> forName(String className)
//package com.java2s; /*/* w ww . ja v a 2 s . co m*/ * Copyright 2015-2016 the original author or authors. * * Licensed 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 { protected static Class<?> forName(String className) { ClassLoader loader = Thread.currentThread().getContextClassLoader(); try { return Class.forName(className, true, loader); } catch (ClassNotFoundException e) { throw new IllegalStateException("Failed to find class: " + className + " loader=" + loader, e); } } }