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Posted to httpclient-users@hc.apache.org by N V Kameshwara Rao <ka...@applabs.net> on 2005/01/31 05:25:26 UTC
Connection Closed by JVM : error when using HttpClient 2.0
Hi all,
I am a newbie at HttpClient.
I have been trying to implement HttpClient for a Java Web Start
Application.
All goes well but I sometimes keep getting this exception which states
Connection closed by the JVM...
How do I resolve this issue? What does the MethodRetryHandler have to do
with this?
This usually happens when I wait for about a minute or so before
executing the PostMethod
Please let me know how I can fix this.
Thanks in advance,
Rgds,
Kamesh
Re: Connection Closed by JVM : error when using HttpClient 2.0
Posted by Oleg Kalnichevski <ol...@apache.org>.
Kamesh,
What has changed? Frankly, a lot. A lot if *really* important things.
(1) Architecture
* New preference architecture
* Improved exception handling framework
* Granular non-standards configuration and tracking
* Improved HTTP Version configuration and tracking
* Support for streaming entities
* Support for tunneled HTTP proxies via the ProxyClient
* Ability to abort execution of HTTP methods
(2) Connection management
* Support for closing idle connections
* Support for JDK1.4 connect timeout through reflection
* Support for connection manager shutdown
(3) Authentication
* Improved authentication framework
* Plug-in mechanism for authentication modules
* Interactive authentication support
* Alternate authentication support
(4) Cookie management
* Cookie specification plug-in mechanism
* 'Ignore cookies' cookie policy
* Improved Netscape cookie support
(5) Redirects
* Cross-site redirect support
For more details see:
http://svn.apache.org/repos/asf/jakarta/commons/proper/httpclient/trunk/release_notes.txt
http://issues.apache.org/bugzilla/buglist.cgi?query_format=advanced&short_desc_type=allwordssubstr&short_desc=&product=HttpClient&target_milestone=2.1+Final&target_milestone=3.0+Alpha+1&target_milestone=3.0+Alpha+2&target_milestone=3.0+Beta+1&target_milestone=3.0+Beta+2&long_desc_type=substring&long_desc=&bug_file_loc_type=allwordssubstr&bug_file_loc=&keywords_type=allwords&keywords=&resolution=FIXED&emailassigned_to1=1&emailtype1=substring&email1=&emailassigned_to2=1&emailreporter2=1&emailcc2=1&emailtype2=substring&email2=&bugidtype=include&bug_id=&votes=&chfieldfrom=&chfieldto=Now&chfieldvalue=&cmdtype=doit&order=Reuse+same+sort+as+last+time&field0-0-0=noop&type0-0-0=noop&value0-0-0=
Moreover, HttpClient 3.0 is about to go RC1 within a week or so.
Basically I see no reasons to not upgrade
Cheers,
Oleg
On Mon, Jan 31, 2005 at 07:48:46PM +0530, N V Kameshwara Rao wrote:
> Thanks Oleg,
> The pointers have been, indeed, very helpful.
> While i understand the recommendations to upgrade to 3.0,
> am very curious to know if there are any issues in 2.0 that were fixed in
> 3.0.
>
> Thank you once again.
> rgds,
> kamesh
>
>
> -----Original Message-----
> From: Oleg Kalnichevski [mailto:olegk@apache.org]
> Sent: Monday, January 31, 2005 7:14 PM
> To: httpclient-user@jakarta.apache.org
> Cc: N V Kameshwara Rao
> Subject: Re: Connection Closed by JVM : error when using HttpClient 2.0
>
>
> Kamesh
>
> Please take a look at the HttpClient tutorial and the HttpClient
> exception handling guide:
>
> http://jakarta.apache.org/commons/httpclient/3.0/tutorial.html
> http://jakarta.apache.org/commons/httpclient/3.0/exception-handling.html
>
> Please note these tutorials are based on new HttpClient 3.0 code. The
> same concepts and principles do apply to HttpClient 2.0 but I would
> strongly recommend upgrading.
>
> Hope this helps
>
> Oleg
>
> On Mon, Jan 31, 2005 at 09:55:26AM +0530, N V Kameshwara Rao wrote:
> >
> > Hi all,
> > I am a newbie at HttpClient.
> > I have been trying to implement HttpClient for a Java Web Start
> > Application.
> > All goes well but I sometimes keep getting this exception which states
> > Connection closed by the JVM...
> > How do I resolve this issue? What does the MethodRetryHandler have to
> do
> > with this?
> > This usually happens when I wait for about a minute or so before
> > executing the PostMethod
> >
> >
> > Please let me know how I can fix this.
> >
> > Thanks in advance,
> > Rgds,
> > Kamesh
>
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>
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RE: Connection Closed by JVM : error when using HttpClient 2.0
Posted by N V Kameshwara Rao <ka...@applabs.net>.
Thanks Oleg,
The pointers have been, indeed, very helpful.
While i understand the recommendations to upgrade to 3.0,
am very curious to know if there are any issues in 2.0 that were fixed in
3.0.
Thank you once again.
rgds,
kamesh
-----Original Message-----
From: Oleg Kalnichevski [mailto:olegk@apache.org]
Sent: Monday, January 31, 2005 7:14 PM
To: httpclient-user@jakarta.apache.org
Cc: N V Kameshwara Rao
Subject: Re: Connection Closed by JVM : error when using HttpClient 2.0
Kamesh
Please take a look at the HttpClient tutorial and the HttpClient
exception handling guide:
http://jakarta.apache.org/commons/httpclient/3.0/tutorial.html
http://jakarta.apache.org/commons/httpclient/3.0/exception-handling.html
Please note these tutorials are based on new HttpClient 3.0 code. The
same concepts and principles do apply to HttpClient 2.0 but I would
strongly recommend upgrading.
Hope this helps
Oleg
On Mon, Jan 31, 2005 at 09:55:26AM +0530, N V Kameshwara Rao wrote:
>
> Hi all,
> I am a newbie at HttpClient.
> I have been trying to implement HttpClient for a Java Web Start
> Application.
> All goes well but I sometimes keep getting this exception which states
> Connection closed by the JVM...
> How do I resolve this issue? What does the MethodRetryHandler have to
do
> with this?
> This usually happens when I wait for about a minute or so before
> executing the PostMethod
>
>
> Please let me know how I can fix this.
>
> Thanks in advance,
> Rgds,
> Kamesh
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Re: Connection Closed by JVM : error when using HttpClient 2.0
Posted by Oleg Kalnichevski <ol...@apache.org>.
Kamesh
Please take a look at the HttpClient tutorial and the HttpClient
exception handling guide:
http://jakarta.apache.org/commons/httpclient/3.0/tutorial.html
http://jakarta.apache.org/commons/httpclient/3.0/exception-handling.html
Please note these tutorials are based on new HttpClient 3.0 code. The
same concepts and principles do apply to HttpClient 2.0 but I would
strongly recommend upgrading.
Hope this helps
Oleg
On Mon, Jan 31, 2005 at 09:55:26AM +0530, N V Kameshwara Rao wrote:
>
> Hi all,
> I am a newbie at HttpClient.
> I have been trying to implement HttpClient for a Java Web Start
> Application.
> All goes well but I sometimes keep getting this exception which states
> Connection closed by the JVM...
> How do I resolve this issue? What does the MethodRetryHandler have to do
> with this?
> This usually happens when I wait for about a minute or so before
> executing the PostMethod
>
>
> Please let me know how I can fix this.
>
> Thanks in advance,
> Rgds,
> Kamesh
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