[jboss-dev-forums] [Design of POJO Server] - Re: VFS Permissions - JBMICROCONT-149

[david.lloyd@jboss.com]

Here's my little test:

import java.net.URL;
  | import java.net.URLConnection;
  | import java.net.URLStreamHandlerFactory;
  | import java.net.URLStreamHandler;
  | import java.io.IOException;
  | 
  | public final class Main {
  | 
  |     public static void main(String[] args) throws IOException {
  |         final URL urlOne = new URL("http", "www.google.com", "/");
  |         final URLConnection conn = urlOne.openConnection();
  |         final Class<? extends URLConnection> origClass = conn.getClass();
  |         URL.setURLStreamHandlerFactory(new URLStreamHandlerFactory() {
  |             public URLStreamHandler createURLStreamHandler(final String protocol) {
  |                 if (protocol.equals("http")) {
  |                     return new URLStreamHandler() {
  |                         @Override
  |                         protected URLConnection openConnection(final URL u) throws IOException {
  |                             return new URLConnection(u) {
  |                                 @Override
  |                                 public void connect() throws IOException {
  |                                 }
  |                             };
  |                         }
  |                     };
  |                 } else {
  |                     return null;
  |                 }
  |             }
  |         });
  |         final URL urlTwo = new URL("http", "www.google.com", "/");
  |         final URLConnection conn2 = urlTwo.openConnection();
  |         final Class<? extends URLConnection> newClass = conn2.getClass();
  |         System.out.println("First: " + origClass.getName() + ", second: " + newClass.getName());
  |     }
  | }

The expected result is that the two classes printed are different, which demonstrates that the cache does not survive the setURLStreamHandlerFactory call.

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