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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/*
* Copyright (c) 2024, 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.
*/
import jdk.test.lib.Utils;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.MethodSource;
import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.nio.channels.SocketChannel;
import java.util.List;
import static java.net.InetAddress.getLoopbackAddress;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
/*
* @test
* @bug 8343791
* @summary verifies that `connect()` failures throw the expected exception and leave socket in the expected state
* @library /test/lib
* @run junit ConnectFailTest
*/
class ConnectFailTest {
// Implementation Note: Explicitly binding on the loopback address to avoid potential unstabilities.
private static final int DEAD_SERVER_PORT = 0xDEAD;
private static final InetSocketAddress REFUSING_SOCKET_ADDRESS = Utils.refusingEndpoint();
private static final InetSocketAddress UNRESOLVED_ADDRESS =
InetSocketAddress.createUnresolved("no.such.host", DEAD_SERVER_PORT);
@Test
void testUnresolvedAddress() {
assertTrue(UNRESOLVED_ADDRESS.isUnresolved());
}
/**
* Verifies that an unbound socket is closed when {@code connect()} fails.
*/
@ParameterizedTest
@MethodSource("sockets")
void testUnboundSocket(Socket socket) throws IOException {
try (socket) {
assertFalse(socket.isBound());
assertFalse(socket.isConnected());
assertThrows(IOException.class, () -> socket.connect(REFUSING_SOCKET_ADDRESS));
assertTrue(socket.isClosed());
}
}
/**
* Verifies that a bound socket is closed when {@code connect()} fails.
*/
@ParameterizedTest
@MethodSource("sockets")
void testBoundSocket(Socket socket) throws IOException {
try (socket) {
socket.bind(new InetSocketAddress(getLoopbackAddress(), 0));
assertTrue(socket.isBound());
assertFalse(socket.isConnected());
assertThrows(IOException.class, () -> socket.connect(REFUSING_SOCKET_ADDRESS));
assertTrue(socket.isClosed());
}
}
/**
* Verifies that a connected socket is not closed when {@code connect()} fails.
*/
@ParameterizedTest
@MethodSource("sockets")
void testConnectedSocket(Socket socket) throws Throwable {
try (socket; ServerSocket serverSocket = createEphemeralServerSocket()) {
socket.connect(serverSocket.getLocalSocketAddress());
try (Socket _ = serverSocket.accept()) {
assertTrue(socket.isBound());
assertTrue(socket.isConnected());
SocketException exception = assertThrows(
SocketException.class,
() -> socket.connect(REFUSING_SOCKET_ADDRESS));
assertEquals("Already connected", exception.getMessage());
assertFalse(socket.isClosed());
}
}
}
/**
* Verifies that an unbound socket is closed when {@code connect()} is invoked using an unresolved address.
*/
@ParameterizedTest
@MethodSource("sockets")
void testUnboundSocketWithUnresolvedAddress(Socket socket) throws IOException {
try (socket) {
assertFalse(socket.isBound());
assertFalse(socket.isConnected());
assertThrows(UnknownHostException.class, () -> socket.connect(UNRESOLVED_ADDRESS));
assertTrue(socket.isClosed());
}
}
/**
* Verifies that a bound socket is closed when {@code connect()} is invoked using an unresolved address.
*/
@ParameterizedTest
@MethodSource("sockets")
void testBoundSocketWithUnresolvedAddress(Socket socket) throws IOException {
try (socket) {
socket.bind(new InetSocketAddress(getLoopbackAddress(), 0));
assertTrue(socket.isBound());
assertFalse(socket.isConnected());
assertThrows(UnknownHostException.class, () -> socket.connect(UNRESOLVED_ADDRESS));
assertTrue(socket.isClosed());
}
}
/**
* Verifies that a connected socket is not closed when {@code connect()} is invoked using an unresolved address.
*/
@ParameterizedTest
@MethodSource("sockets")
void testConnectedSocketWithUnresolvedAddress(Socket socket) throws Throwable {
try (socket; ServerSocket serverSocket = createEphemeralServerSocket()) {
socket.connect(serverSocket.getLocalSocketAddress());
try (Socket _ = serverSocket.accept()) {
assertTrue(socket.isBound());
assertTrue(socket.isConnected());
assertThrows(IOException.class, () -> socket.connect(UNRESOLVED_ADDRESS));
assertFalse(socket.isClosed());
}
}
}
static List<Socket> sockets() throws Exception {
Socket socket = new Socket();
@SuppressWarnings("resource")
Socket channelSocket = SocketChannel.open().socket();
Socket noProxySocket = new Socket(Proxy.NO_PROXY);
return List.of(socket, channelSocket, noProxySocket);
}
private static ServerSocket createEphemeralServerSocket() throws IOException {
return new ServerSocket(0, 0, InetAddress.getLoopbackAddress());
}
}
|
