/* * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ import java.io.*; import java.net.*; import sun.hotspot.WhiteBox; public class Hello { public static void main(String args[]) throws Exception { String path = args[0]; URL url = new File(path).toURI().toURL(); URL[] urls = new URL[] {url}; System.out.println(path); System.out.println(url); URLClassLoader urlClassLoader = new URLClassLoader(urls); Class c = urlClassLoader.loadClass("CustomLoadee"); System.out.println(c); System.out.println(c.getClassLoader()); // [1] Check that CustomLoadee is defined by the correct loader if (c.getClassLoader() != urlClassLoader) { throw new RuntimeException("c.getClassLoader() == " + c.getClassLoader() + ", expected == " + urlClassLoader); } // [2] Check that CustomLoadee is loaded from shared archive. WhiteBox wb = WhiteBox.getWhiteBox(); if (wb.isSharedClass(Hello.class)) { if (!wb.isSharedClass(c)) { throw new RuntimeException("wb.isSharedClass(c) should be true"); } } } }