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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HTTPCLIENT-1019) httpclient-osgi Requires commons-logging 1.1.1 exported in OSGi, which they have no plan to move forward with
Date Wed, 27 Oct 2010 13:18:20 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925361#action_12925361

Oleg Kalnichevski commented on HTTPCLIENT-1019:


While I agree the discovery mechanism of Commons Logging is utterly broken for containers
and managed environments with complex class loader hierarchies, I personally do not think
there is anything wrong with the Commons Logging API. We had a fair share of Logging Wars
on the dev and user lists in the past and would not like them to repeat. 

There is _nothing_ that prevents you from using a compatibility layer such as jcl-over-slf4j
provided by slf4j and whatever concrete implementation you find to be OSGi friendly.

I will happily tweak the bundle manifest but It is unlikely we will be able to replace Commons
Logging with a different logging toolkit in the stable (4.x) branch. We can revisit the issue
for HttpClient 5.0 (if that is of any consolation to you).


> httpclient-osgi Requires commons-logging 1.1.1 exported in OSGi, which they have no plan
to move forward with
> -------------------------------------------------------------------------------------------------------------
>                 Key: HTTPCLIENT-1019
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1019
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>    Affects Versions: 4.0.1, 4.0.2, 4.0.3
>            Reporter: Zach Calvert
>            Priority: Critical
> If you are trying to run the httpclient-osgi version 4.0.1, there is little opportunity
to make it work without hand rolling your own apache commons logging.  Using the Maven descriptor:
>         <dependency>
>             <groupId>org.apache.httpcomponents</groupId>
>             <artifactId>httpclient-osgi</artifactId>
>             <version>4.0.1</version>
>         </dependency>
> You will find that the downloaded bundle manifest has:
> Import-Package: javax.crypto,javax.crypto.spec,javax.net.ssl,javax.sec
>  urity.auth.x500,org.apache.commons.logging;version="1.1.1",org.apache
> ...
> Emphasis on org.apache.commons.logging;version="1.1.1".  Basing my understanding of the
bug at 
> https://issues.apache.org/jira/browse/LOGGING-124
> which I have also commented on, there is no such thing as an exported osgi package version
1.1.1 of commons logging due to problems with the OSGi classloader.  
> Support needs to be made to make commons logging optional in the osgi world and if the
logging mechanism for commons logging isn't there, then move forward to something that doesn't
make waves for the OSGi runtime.

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