1 /* 2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.io.*; 25 /* 26 * @test 27 * @bug 4135031 28 * @summary Test boostrap problem when a URLStreamHandlerFactory is loaded 29 * by the application class loader. 30 * 31 */ 32 import java.net.*; 33 34 public class HandlerLoop { 35 main(String args[])36 public static void main(String args[]) throws Exception { 37 URL.setURLStreamHandlerFactory( 38 new HandlerFactory("sun.net.www.protocol")); 39 URL url = new URL("file:///bogus/index.html"); 40 System.out.println("url = " + url); 41 url.openConnection(); 42 } 43 44 private static class HandlerFactory implements URLStreamHandlerFactory { 45 private String pkg; 46 HandlerFactory(String pkg)47 HandlerFactory(String pkg) { 48 this.pkg = pkg; 49 } 50 createURLStreamHandler(String protocol)51 public URLStreamHandler createURLStreamHandler(String protocol) { 52 String name = pkg + "." + protocol + ".Handler"; 53 System.out.println("Loading handler class: " + name); 54 // Loading this dummy class demonstrates the bootstrap 55 // problem as the stream handler factory will be reentered 56 // over and over again if the application class loader 57 // shares the same stream handler factory. 58 new Dummy(); 59 try { 60 Class c = Class.forName(name); 61 return (URLStreamHandler)c.newInstance(); 62 } catch (ClassNotFoundException e) { 63 e.printStackTrace(); 64 } catch (IllegalAccessException e) { 65 e.printStackTrace(); 66 } catch (InstantiationException e) { 67 e.printStackTrace(); 68 } 69 return null; 70 } 71 } 72 73 private static class Dummy { 74 } 75 } 76