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From "Sam Berlin" <sber...@gmail.com>
Subject Re: IllegalStateException when sending a new request with a HttpClient that allready sent an aborted request.
Date Fri, 18 Apr 2008 19:51:36 GMT
Ya, 4.0.  There's some snapshots available @ people.apache.org, the
latest of which appears to be:
http://people.apache.org/repo/m2-snapshot-repository/org/apache/httpcomponents/httpclient/4.0-alpha4-SNAPSHOT/httpclient-4.0-alpha4-20080417.184048-7.jar
.  I can't guarantee they'll work (as the API is in flux), but if your
code can compile against it and run, and the error goes away, atleast
we can verify that the bug is indeed fixed for the next alpha release.

Sam

On 4/18/08, Jan Bracker <jan.bracker@googlemail.com> wrote:
> Sorry, i don't have any experience with building maven projects...
>
> I forget to say that i'm working with 4.0, not that we missunderstand :)
>
> 2008/4/18, Sam Berlin <sberlin@gmail.com>:
> > This is likely due to a problem with the last alpha release of
> >  HttpClient.  Aborted connections weren't properly released back to
> >  connection managers.  It's been fixed, but I'm not sure a new release
> >  was issued.
> >
> >  Is it possible to try building httpclient from source and see if the
> >  problem still occurs?
> >
> >  Sam
> >
> >
> >  On 4/18/08, Jan Bracker <jan.bracker@googlemail.com> wrote:
> >  > Hello,
> >  >
> >  > when i abort a request and after that, start a new one with my
> >  > DefaultHttpClient i get the following exception:
> >  > 29207 [Thread-3] WARN
> >  > org.apache.http.impl.conn.SingleClientConnManager  - 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://selfhtml.mijabo.de:80]
> >  >        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:463)
> >  >        at org.downman.download.http.HttpDownload$HttpDownloader.requestFileInfo(HttpDownload.java:294)
> >  >        at org.downman.download.http.HttpDownload$HttpDownloader.initializeDownloader(HttpDownload.java:423)
> >  >        at org.downman.download.http.HttpDownload$HttpDownloader.run(HttpDownload.java:536)
> >  >        at java.lang.Thread.run(Thread.java:619)
> >  >
> >  > Allthough it is only a warning I followed the given adivce and tried
> >  > the following after i abort a request:
> >  > this.REQUEST.abort();
> >  > try {
> >  >    this.CLIENT.getConnectionManager().releaseConnection(
> >  >            this.CLIENT.getConnectionManager().getConnection(new
> >  > HttpRoute(HttpDownload.this.HOST)));
> >  > }
> >  > catch(InterruptedException e) {
> >  >    LOG.warn("Releasing the connection failed for download: "
> >  >            + HttpDownload.this.getSource().toString(), e);
> >  > }
> >  >
> >  > After that the warning did not appear anymore after starting a new
> >  > request, but for some reason this exception appeared as warning when
> >  > aborting/trying to release the connection:
> >  > 40827 [Thread-3] WARN
> >  > org.apache.http.impl.conn.SingleClientConnManager  - Invalid use of
> >  > SingleClientConnManager: connection still allocated.
> >  > Make sure to release the connection before allocating another one.
> >  > java.lang.IllegalStateException: Revoking connection to
> >  > HttpRoute[{}->http://selfhtml.tobias-unger.com:80]
> >  >        at org.apache.http.impl.conn.SingleClientConnManager.revokeConnection(SingleClientConnManager.java:345)
> >  >        at org.apache.http.impl.conn.SingleClientConnManager.getConnection(SingleClientConnManager.java:220)
> >  >        at org.downman.download.http.HttpDownload$HttpDownloader.releaseConnection(HttpDownload.java:410)
> >  >        at org.downman.download.http.HttpDownload$HttpDownloader.finalizeDownloader(HttpDownload.java:527)
> >  >        at org.downman.download.http.HttpDownload$HttpDownloader.run(HttpDownload.java:601)
> >  >        at java.lang.Thread.run(Thread.java:619)
> >  >
> >  > It seems to be the same error. I wanted to ask, what am i doing wrong?
> >  > Is it normal to recieve a warning exception when sending requests
> >  > after previously aborting one? How can i get rid of this warning?
> >  >
> >  > As a sidenote: I am reusing one and the same HttpRequest (same
> >  > instance) and HttpClient multiple times.
> >  >
> >  > Regards,
> >  > Jan Bracker
> >  >
> >
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> >
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> >
>
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