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
|
/*
* Copyright (c) 2006, 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 6427251 6382788
* @modules jdk.httpserver
* @run main RetryPost
* @run main/othervm -Dsun.net.http.retryPost=false RetryPost noRetry
* @summary HttpURLConnection automatically retries non-idempotent method POST
*/
import com.sun.net.httpserver.HttpContext;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.SocketException;
import java.net.URL;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
public class RetryPost
{
static boolean shouldRetry = true;
com.sun.net.httpserver.HttpServer httpServer;
MyHandler httpHandler;
ExecutorService executorService;
public static void main(String[] args) {
if (args.length == 1 && args[0].equals("noRetry"))
shouldRetry = false;
new RetryPost();
}
public RetryPost() {
try {
startHttpServer(shouldRetry);
doClient();
} catch (IOException ioe) {
System.err.println(ioe);
}
}
void doClient() {
try {
InetSocketAddress address = httpServer.getAddress();
URL url = new URL("http://localhost:" + address.getPort() + "/test/");
HttpURLConnection uc = (HttpURLConnection)url.openConnection(Proxy.NO_PROXY);
uc.setDoOutput(true);
uc.setRequestMethod("POST");
uc.getResponseCode();
// if we reach here then we have failed
throw new RuntimeException("Failed: POST request being retried");
} catch (SocketException se) {
// this is what we expect to happen and is OK.
if (shouldRetry && httpHandler.getCallCount() != 2)
throw new RuntimeException("Failed: Handler should have been called twice. " +
"It was called "+ httpHandler.getCallCount() + " times");
else if (!shouldRetry && httpHandler.getCallCount() != 1)
throw new RuntimeException("Failed: Handler should have only been called once" +
"It was called "+ httpHandler.getCallCount() + " times");
} catch (IOException e) {
e.printStackTrace();
} finally {
httpServer.stop(1);
executorService.shutdown();
}
}
/**
* Http Server
*/
public void startHttpServer(boolean shouldRetry) throws IOException {
httpServer = com.sun.net.httpserver.HttpServer.create(new InetSocketAddress(0), 0);
httpHandler = new MyHandler(shouldRetry);
HttpContext ctx = httpServer.createContext("/test/", httpHandler);
executorService = Executors.newCachedThreadPool();
httpServer.setExecutor(executorService);
httpServer.start();
}
class MyHandler implements HttpHandler {
int callCount = 0;
boolean shouldRetry;
public MyHandler(boolean shouldRetry) {
this.shouldRetry = shouldRetry;
}
public void handle(HttpExchange t) throws IOException {
callCount++;
if (callCount > 1 && !shouldRetry) {
// if this bug has been fixed then this method will not be called twice
// when -Dhttp.retryPost=false
t.sendResponseHeaders(400, -1); // indicate failure by returning 400
} else {
// simply close out the stream without sending any data.
OutputStream os = t.getResponseBody();
os.close();
}
}
public int getCallCount() {
return callCount;
}
}
}
|
