1 /*
2 * Copyright (c) 2005, 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 /* @test
25 * @bug 4457683
26 * @summary After all of the remote objects (including a registry, if
27 * applicable) that had been exported with a given
28 * RMIServerSocketFactory value (including null) have been unexported,
29 * the server socket created for the exports should be closed (so that
30 * the local port is released).
31 * @author Peter Jones
32 *
33 * @library ../../testlibrary
34 * @modules java.rmi/sun.rmi.registry
35 * java.rmi/sun.rmi.server
36 * java.rmi/sun.rmi.transport
37 * java.rmi/sun.rmi.transport.tcp
38 * @build TestLibrary
39 * @run main/othervm CloseServerSocket
40 */
41
42 import java.io.IOException;
43 import java.net.BindException;
44 import java.net.ServerSocket;
45 import java.rmi.Remote;
46 import java.rmi.registry.LocateRegistry;
47 import java.rmi.registry.Registry;
48 import java.rmi.server.RMIServerSocketFactory;
49 import java.rmi.server.UnicastRemoteObject;
50
51 public class CloseServerSocket implements Remote {
52 private static final int PORT = TestLibrary.getUnusedRandomPort();
53
54 private CloseServerSocket() { }
55
56 public static void main(String[] args) throws Exception {
57 System.err.println("\nRegression test for bug 4457683\n");
58
59 verifyPortFree(PORT);
60 Registry registry = LocateRegistry.createRegistry(PORT);
61 System.err.println("- exported registry: " + registry);
62 verifyPortInUse(PORT);
63 UnicastRemoteObject.unexportObject(registry, true);
64 System.err.println("- unexported registry");
65 Thread.sleep(1000); // work around BindException (bug?)
66 verifyPortFree(PORT);
67
68 /*
69 * The follow portion of this test is disabled temporarily
70 * because 4457683 was partially backed out because of
71 * 6269166; for now, only server sockets originally opened for
72 * exports on non-anonymous ports will be closed when all of
73 * the corresponding remote objects have been exported. A
74 * separate bug will be filed to represent the remainder of
75 * 4457683 for anonymous-port exports.
76 */
77
78 // SSF ssf = new SSF();
79 // Remote impl = new CloseServerSocket();
80 // Remote stub = UnicastRemoteObject.exportObject(impl, 0, null, ssf);
81 // System.err.println("- exported object: " + stub);
82 // UnicastRemoteObject.unexportObject(impl, true);
83 // System.err.println("- unexported object");
84 // synchronized (ssf) {
85 // if (!ssf.serverSocketClosed) {
86 // throw new RuntimeException("TEST FAILED: " +
87 // "server socket not closed");
88 // }
89 // }
90
91 System.err.println("TEST PASSED");
92 }
93
94 private static void verifyPortFree(int port) throws IOException {
95 ServerSocket ss = new ServerSocket(port);
96 ss.close();
97 System.err.println("- port " + port + " is free");
98 }
99
100 private static void verifyPortInUse(int port) throws IOException {
101 try {
102 verifyPortFree(port);
103 } catch (BindException e) {
104 System.err.println("- port " + port + " is in use");
105 return;
106 }
107 }
108
109 private static class SSF implements RMIServerSocketFactory {
110 boolean serverSocketClosed = false;
111 SSF() { };
112
113 public ServerSocket createServerSocket(int port) throws IOException {
114 return new SS(port);
115 }
116
117 private class SS extends ServerSocket {
118 SS(int port) throws IOException {
119 super(port);
120 System.err.println("- created server socket: " + this);
121 };
122
123 public void close() throws IOException {
124 synchronized (SSF.this) {
125 serverSocketClosed = true;
126 SSF.this.notifyAll();
127 }
128 System.err.println("- closing server socket: " + this);
129 super.close();
130 }
131 }
132 }
133 }