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Re: [jetty-users] bootstrapping jetty-plus from eclipse equinox: classloader issue and suggested fix

Thanks Jan, I am following your advice and will keep you updated.
Hugues

On Fri, Sep 11, 2009 at 8:12 PM, Jan Bartel <janb@xxxxxxxxxxx> wrote:
> Hugues,
>
> Will take a look at the demo project to see the issue (thanks
> for providing that, makes things much easier).
>
> Meanwhile, from the org.mortbay.* packaging, I guess you're using jetty-6.
>  I recommend that you target the jetty-7 releases from eclipse (which are
> under the org.eclipse package) as jetty-7 has
> been refactored to be (even more) componentized.
> Jetty has been used successfully in osgi containers, so I'll be
> interested to see why your use case has a problem. Our goal is to
> make jetty as osgi-friendly as possible, so we're interested in
> feedback to help improve it.
>
> thanks
> Jan
>
>
>
> Hugues Malphettes wrote:
>>
>> Hi there,
>>
>> I am having difficulties using org.mortbay.jetty,
>> org.mortbay.jetty.util, org.mortbay.jetty.plus and org.mortbay.naming
>> together in an osgi container.
>> the issue is that when I start the jetty server and configure it with
>> jetty.xml and jetty-plus.xml from the osgi container, equinox fails.
>>
>> The classloader of the org.mortbay.jetty.server bundle is not able to
>> locate the jetty-plus classes:
>> when jetty tries to load
>>  <Item>org.mortbay.jetty.plus.webapp.EnvConfiguration</Item>
>>  <Item>org.mortbay.jetty.plus.webapp.Configuration</Item>
>> it fails.
>>
>> The best workaround I am using consists of modifying the manifests of
>> org.mortbay.jetty.server, org.mortbay.jetty.plus and
>> org.mortbay.naming to resolve this.
>> I added to org.mortbay.jetty.server:
>>     Eclipse-BuddyPolicy: registered
>> And to the manifests of org.mortbay.jetty.plus and org.mortbay.naming:
>>     Eclipse-RegisterBuddy: org.mortbay.jetty.server
>>
>> We could also consider making org.mortbay.jetty.server,
>> org.mortbay.jetty.plus and org.mortbay.naming fragments that target
>> org.mortbay.jetty.server. A bit more osgi compliant. But not many osgi
>> container support fragments yet.
>>
>> Here is a small project to reproduce the issue:
>> http://github.com/hmalphettes/osgi-webapp-simple/tree/master (licensed
>> under the EPL)
>> The first bundle bootstraps jetty.
>> The second one is a bundle that contains a web-application.
>> It works fine because it depends only on jetty, not jetty-plus.
>> Adding jetty-plus's bundle and using jetty-plus in the config will
>> reproduce the issue described above.
>>
>> Let me know if I am missing something or if there is a different way
>> to install jetty' plus bundles in an osgi container.
>>
>> Cheers,
>> Hugues
>> _______________________________________________
>> jetty-users mailing list
>> jetty-users@xxxxxxxxxxx
>> https://dev.eclipse.org/mailman/listinfo/jetty-users
>
> --
> Jan Bartel, Webtide LLC | janb@xxxxxxxxxxx | http://www.webtide.com
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