1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
* Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
* @bug 4322806
* @summary When an RMI (JRMP) connection is made to a TCP address that is
* listening, so the connection is accepted, but the server never responds
* to the initial JRMP handshake (nor does it terminate the connection),
* the client should not hang forever; instead, it should throw an exception
* after a reasonable timeout interval. The exception should be a
* java.rmi.ConnectException or ConnectIOException, not a MarshalException,
* because it should be clear that no partial call execution has occurred at
* this point (because no data for the invocation has yet been written).
* @author Peter Jones
*
* @modules java.rmi/sun.rmi.registry
* java.rmi/sun.rmi.server
* java.rmi/sun.rmi.transport
* java.rmi/sun.rmi.transport.tcp
* @run main/othervm HandshakeTimeout
*/
import java.net.ServerSocket;
import java.rmi.ConnectException;
import java.rmi.ConnectIOException;
import java.rmi.MarshalException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
public class HandshakeTimeout {
private static final int TIMEOUT = 10000;
public static void main(String[] args) throws Exception {
System.setProperty("sun.rmi.transport.tcp.handshakeTimeout",
String.valueOf(TIMEOUT / 2));
/*
* Listen on port, but never process connections made to it.
*/
ServerSocket serverSocket = new ServerSocket(0);
int port = serverSocket.getLocalPort();
/*
* Attempt RMI call to port in separate thread.
*/
Registry registry = LocateRegistry.getRegistry(port);
Connector connector = new Connector(registry);
Thread t = new Thread(connector);
t.setDaemon(true);
t.start();
/*
* Wait for call attempt to finished, and analyze result.
*/
t.join(TIMEOUT);
synchronized (connector) {
if (connector.success) {
throw new RuntimeException(
"TEST FAILED: remote call succeeded??");
}
if (connector.exception == null) {
throw new RuntimeException(
"TEST FAILED: remote call did not time out");
} else {
System.err.println("remote call failed with exception:");
connector.exception.printStackTrace();
System.err.println();
if (connector.exception instanceof MarshalException) {
throw new RuntimeException(
"TEST FAILED: MarshalException thrown, expecting " +
"java.rmi.ConnectException or ConnectIOException");
} else if (connector.exception instanceof ConnectException ||
connector.exception instanceof ConnectIOException)
{
System.err.println(
"TEST PASSED: java.rmi.ConnectException or " +
"ConnectIOException thrown");
} else {
throw new RuntimeException(
"TEST FAILED: unexpected Exception thrown",
connector.exception);
}
}
}
}
private static class Connector implements Runnable {
private final Registry registry;
boolean success = false;
Exception exception = null;
Connector(Registry registry) {
this.registry = registry;
}
public void run() {
try {
registry.lookup("Dale Cooper");
synchronized (this) {
success = true;
}
} catch (Exception e) {
synchronized (this) {
exception = e;
}
}
}
}
}
|
