1 /*
2 * Copyright (c) 2005, 2016, 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 * @key intermittent
41 */
42
43 import java.io.IOException;
44 import java.net.BindException;
45 import java.net.ServerSocket;
46 import java.rmi.Remote;
47 import java.rmi.registry.LocateRegistry;
48 import java.rmi.registry.Registry;
49 import java.rmi.server.RMIServerSocketFactory;
50 import java.rmi.server.UnicastRemoteObject;
51
52 public class CloseServerSocket implements Remote {
53 private static final int PORT = TestLibrary.getUnusedRandomPort();
54
55 private CloseServerSocket() { }
56
57 public static void main(String[] args) throws Exception {
58 System.err.println("\nRegression test for bug 4457683\n");
59
60 verifyPortFree(PORT);
61 Registry registry = LocateRegistry.createRegistry(PORT);
62 System.err.println("- exported registry: " + registry);
63 verifyPortInUse(PORT);
64 UnicastRemoteObject.unexportObject(registry, true);
65 System.err.println("- unexported registry");
66 Thread.sleep(1000); // work around BindException (bug?)
67 verifyPortFree(PORT);
68
69 /*
70 * The follow portion of this test is disabled temporarily
71 * because 4457683 was partially backed out because of
72 * 6269166; for now, only server sockets originally opened for
73 * exports on non-anonymous ports will be closed when all of
74 * the corresponding remote objects have been exported. A
75 * separate bug will be filed to represent the remainder of
76 * 4457683 for anonymous-port exports.
77 */
78
79 // SSF ssf = new SSF();
80 // Remote impl = new CloseServerSocket();
81 // Remote stub = UnicastRemoteObject.exportObject(impl, 0, null, ssf);
82 // System.err.println("- exported object: " + stub);
83 // UnicastRemoteObject.unexportObject(impl, true);
84 // System.err.println("- unexported object");
85 // synchronized (ssf) {
86 // if (!ssf.serverSocketClosed) {
87 // throw new RuntimeException("TEST FAILED: " +
88 // "server socket not closed");
89 // }
90 // }
91
92 System.err.println("TEST PASSED");
93 }
94
95 private static void verifyPortFree(int port) throws IOException {
96 ServerSocket ss = new ServerSocket(port);
97 ss.close();
98 System.err.println("- port " + port + " is free");
99 }
100
101 private static void verifyPortInUse(int port) throws IOException {
102 try {
103 verifyPortFree(port);
104 } catch (BindException e) {
105 System.err.println("- port " + port + " is in use");
106 return;
107 }
108 }
109
110 private static class SSF implements RMIServerSocketFactory {
111 boolean serverSocketClosed = false;
112 SSF() { };
113
114 public ServerSocket createServerSocket(int port) throws IOException {
115 return new SS(port);
116 }
117
118 private class SS extends ServerSocket {
119 SS(int port) throws IOException {
120 super(port);
121 System.err.println("- created server socket: " + this);
122 };
123
124 public void close() throws IOException {
125 synchronized (SSF.this) {
126 serverSocketClosed = true;
127 SSF.this.notifyAll();
128 }
129 System.err.println("- closing server socket: " + this);
130 super.close();
131 }
132 }
133 }
134 }