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
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
47 HandlerFactory(String pkg) {
48 this.pkg = pkg;
49 }
50
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 }
|
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.lang.reflect.InvocationTargetException;
25 import java.net.URL;
26 import java.net.URLStreamHandler;
27 import java.net.URLStreamHandlerFactory;
28
29 /*
30 * @test
31 * @bug 4135031
32 * @summary Test bootstrap problem when a URLStreamHandlerFactory is loaded
33 * by the application class loader.
34 * @modules java.base/sun.net.www.protocol.file
35 * @run main HandlerLoop
36 */
37 public class HandlerLoop {
38
39 public static void main(String args[]) throws Exception {
40 URL.setURLStreamHandlerFactory(
41 new HandlerFactory("sun.net.www.protocol"));
42 URL url = new URL("file:///bogus/index.html");
43 System.out.println("url = " + url);
44 url.openConnection();
45 }
46
47 private static class HandlerFactory implements URLStreamHandlerFactory {
48 private String pkg;
49
50 HandlerFactory(String pkg) {
51 this.pkg = pkg;
52 }
53
54 public URLStreamHandler createURLStreamHandler(String protocol) {
55 String name = pkg + "." + protocol + ".Handler";
56 System.out.println("Loading handler class: " + name);
57 // Loading this dummy class demonstrates the bootstrap
58 // problem as the stream handler factory will be reentered
59 // over and over again if the application class loader
60 // shares the same stream handler factory.
61 new Dummy();
62 try {
63 Class<?> c = Class.forName(name);
64 return (URLStreamHandler)c.getDeclaredConstructor().newInstance();
65 } catch (ClassNotFoundException |
66 IllegalAccessException |
67 InstantiationException |
68 NoSuchMethodException |
69 InvocationTargetException e) {
70 e.printStackTrace();
71 }
72 return null;
73 }
74 }
75
76 private static class Dummy {
77 }
78 }
|