Re: [jetty-users] bootstrapping jetty-plus from eclipse equinox: classlo

[Jan Bartel <janb@xxxxxxxxxxx>]

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
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--
Jan Bartel, Webtide LLC | janb@xxxxxxxxxxx | http://www.webtide.com