/*
* Copyright ( c ) 2007 , 2019 , 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 6518816
* @ library / test / lib
* @ modules jdk . httpserver
* @ run main / othervm B6518816
*/
import java.net.*;
import java.util.*;
import java.io.*;
import com.sun.net.httpserver.*;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
import jdk.test.lib.net.URIBuilder;
public class B6518816
{
com.sun.net.httpserver.HttpServer httpServer;
ExecutorService executorService;
public static void main(String[] args)
{
new B6518816();
}
public B6518816()
{
try {
startHttpServer();
doClient();
} catch (IOException ioe) {
System.err.println(ioe);
}
}
final static int MAX_CONNS = 10 ;
final static int TEN_MB = 10 * 1024 * 1024 ;
static boolean stopped = false ;
/*
* we send approx 100 MB and if more than 90 MB is retained
* then the bug is still there
*/
void doClient() {
try {
InetSocketAddress address = httpServer.getAddress();
List<HttpURLConnection> conns = new LinkedList<HttpURLConnection>();
long totalmem1=0 , totalmem2=0 ;
System.gc();
Runtime runtime = Runtime.getRuntime();
totalmem1 = runtime.totalMemory() - runtime.freeMemory();
System.out.println ("Sending " + (TEN_MB*MAX_CONNS/1024 ) + " KB" );
System.out.println ("At start: " + totalmem1/1024 + " KB" );
byte [] buf = new byte [TEN_MB];
for (int j=0 ; j<MAX_CONNS; j++) {
URL url = URIBuilder.newBuilder()
.scheme("http" )
.loopback()
.port(address.getPort())
.path("/test/" )
.toURLUnchecked();
HttpURLConnection uc = (HttpURLConnection)url.openConnection();
uc.setDoOutput (true );
OutputStream os = uc.getOutputStream ();
os.write (buf);
InputStream is = uc.getInputStream();
int resp = uc.getResponseCode();
if (resp != 200 ) {
throw new RuntimeException("Failed: Part 1, Response code is not 200" );
}
while (is.read() != -1 ) ;
is.close();
conns.add (uc);
}
httpServer.stop(1 );
httpServer = null ;
executorService.shutdown();
executorService = null ;
stopped = true ;
buf = null ;
System.runFinalization();
try {Thread .sleep (1000 ); } catch (InterruptedException e){}
System.gc();
try {Thread .sleep (1000 ); } catch (InterruptedException e){}
System.gc();
totalmem2 = runtime.totalMemory() - runtime.freeMemory();
System.out.println ("At end: " + totalmem2/1024 + " KB" );
long diff = (totalmem2 - totalmem1) ;;
System.out.println ("Diff " + diff/1024 + " kbytes " );
if (diff > (TEN_MB*MAX_CONNS*0 .9 )) {
/* if >= 90 MB retained, then problem still there */
throw new RuntimeException ("Excessive memory retained" );
}
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException ("IOException" );
} finally {
if (!stopped) {
httpServer.stop(1 );
executorService.shutdown();
}
}
}
/**
* Http Server
*/
public void startHttpServer() throws IOException {
httpServer = com.sun.net.httpserver.HttpServer.create(
new InetSocketAddress(InetAddress.getLoopbackAddress(), 0 ),
0 );
// create HttpServer context for Part 1.
HttpContext ctx = httpServer.createContext("/test/" , new MyHandler());
executorService = Executors.newCachedThreadPool();
httpServer.setExecutor(executorService);
httpServer.start();
}
class MyHandler implements HttpHandler {
public void handle(HttpExchange t) throws IOException {
InputStream is = t.getRequestBody();
Headers reqHeaders = t.getRequestHeaders();
Headers resHeaders = t.getResponseHeaders();
byte [] buf = new byte [16 * 1024 ];
while (is.read (buf) != -1 ) ;
t.sendResponseHeaders(200 , -1 );
t.close();
}
}
}
Messung V0.5 in Prozent C=89 H=94 G=91
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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