1 /*
   2  * Copyright (c) 2002, 2012, 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 /* @test
  25  * @bug 4290727
  26  * @summary Verify that ConnectException will trigger HTTP fallback if
  27  *          sun.rmi.transport.proxy.eagerHttpFallback system property is set.
  28  * @library ../../../../java/rmi/testlibrary
  29  * @build TestLibrary
  30  * @run main/othervm EagerHttpFallback
  31  */
  32 
  33 import java.rmi.*;
  34 import java.rmi.registry.*;
  35 
  36 public class EagerHttpFallback {
  37 
  38     static final int INITIAL_PORT = TestLibrary.getUnusedRandomPort();
  39     static final int FALLBACK_PORT = TestLibrary.getUnusedRandomPort();
  40 
  41     public static void main(String[] args) throws Exception {
  42         System.setProperty("http.proxyHost", "127.0.0.1");
  43         System.setProperty("http.proxyPort", Integer.toString(FALLBACK_PORT));
  44         System.setProperty("sun.rmi.transport.proxy.eagerHttpFallback",
  45                            "true");
  46         LocateRegistry.createRegistry(FALLBACK_PORT);
  47 
  48         /*
  49          * The call below should trigger a ConnectException in the
  50          * RMIMasterSocketFactory when it attempts a direct connection to
  51          * INITIAL_PORT, which no one is listening on.  Since
  52          * eagerHttpFallback is set, this ConnectException should trigger HTTP
  53          * fallback, which will send a call through the HTTP proxy, which is
  54          * configured to be localhost with a port behind which a registry is
  55          * listening--so if fallback works properly, the list() call should
  56          * succeed.
  57          */
  58         try {
  59             LocateRegistry.getRegistry(INITIAL_PORT).list();
  60         } catch (Exception e) {
  61             System.err.println(
  62                 "call on registry stub with port " + INITIAL_PORT +
  63                 "did not successfully perform HTTP fallback to " +
  64                 FALLBACK_PORT);
  65             throw e;
  66         }
  67     }
  68 }