HttpClient v 4 Alpha 3: WARNING: Invalid use of SingleClientConnManager:
connection still allocated.
----------------------------------------------------------------------------------------------------
Key: HTTPCLIENT-756
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-756
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpClient
Affects Versions: 4.0 Alpha 3
Environment: Windows XP Professional / Eclipse 3.2 / JDK 1.6
commons-codec-1.3.jar
commons-email-1.1.jar
commons-lang-2.3.jar
commons-logging-1.1.1.jar
commons-logging-adapters-1.1.1.jar
commons-logging-api-1.1.1.jar
commons-logging-tests.jar
httpclient-4.0-alpha3.jar
httpcore-4.0-beta1.jar
httpcore-nio-4.0-beta1.jar
httpmime-4.0-alpha3.jar
Reporter: Tov Are Jacobsen
Priority: Minor
I get a warning and exception even though the connection has been consumed.
The code is listed here as well.
http://code.google.com/p/tovare/source/browse/trunk/src/com/tovare/bugs/ReproduceConnectionError.java
You can check out with subversion using (complete with libs):
svn checkout http://tovare.googlecode.com/svn/trunk/ tovare-read-only
(Note: The code yields the same result with a regular http request, rather than
https as in the code).
/*
* ReproduceConnectionError.java
*/
//
// JDK Compliance: JDK 6.0
//
//First page: HTTP/1.1 200 OK
//07.mar.2008 23:06:12 org.apache.http.impl.conn.SingleClientConnManager
revokeConnection
//WARNING: Invalid use of SingleClientConnManager: connection still allocated.
//Make sure to release the connection before allocating another one.
//java.lang.IllegalStateException: Revoking connection to
HttpRoute[{}->http://www.yahoo.com]
// at
org.apache.http.impl.conn.SingleClientConnManager.revokeConnection(SingleClientConnManager.java:345)
// at
org.apache.http.impl.conn.SingleClientConnManager.getConnection(SingleClientConnManager.java:220)
// at
org.apache.http.impl.conn.SingleClientConnManager.getConnection(SingleClientConnManager.java:195)
// at
org.apache.http.impl.client.DefaultClientRequestDirector.allocateConnection(DefaultClientRequestDirector.java:508)
// at
org.apache.http.impl.client.DefaultClientRequestDirector.execute(DefaultClientRequestDirector.java:293)
// at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:500)
// at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:455)
// at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:421)
// at
com.tovare.bugs.ReproduceConnectionError.main(ReproduceConnectionError.java:43)
//Second page: HTTP/1.1 200 OK
package com.tovare.bugs;
import java.io.*;
import java.net.URISyntaxException;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.*;
import org.apache.http.client.params.ClientPNames;
import org.apache.http.client.params.CookiePolicy;
import org.apache.http.cookie.Cookie;
import org.apache.http.client.methods.*;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.HttpException;
/**
* Trying to reproduce a bug.
*
* @author Tov Are Jacobsen
*
*/
public class ReproduceConnectionError {
/**
* @param args
*/
public static void main(String[] args) throws Exception{
DefaultHttpClient client = new DefaultHttpClient();
client.getParams().setParameter(
ClientPNames.COOKIE_POLICY,
CookiePolicy.BROWSER_COMPATIBILITY);
HttpGet authget = new HttpGet("https://www.yahoo.com/";);
HttpResponse resp = client.execute(authget);
HttpEntity ent = resp.getEntity();
if (ent == null) ent.consumeContent();
System.out.println("First page: " +
resp.getStatusLine().toString());
HttpGet authget2 = new HttpGet("https://www.yahoo.com/";);
HttpResponse resp2 = client.execute(authget2);
HttpEntity ent2 = resp2.getEntity();
if (ent2 == null) ent2.consumeContent();
System.out.println("Second page: " +
resp2.getStatusLine().toString());
}
}
Regards,
Tov Are
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