---

From: "Jason T. Greene" <jason.greene@redhat.com>
To: "Stuart Douglas" <stuart.w.douglas@gmail.com>
Cc: "JBoss AS7 Development" <jboss-as7-dev@lists.jboss.org>
Sent: Wednesday, August 24, 2011 3:20:12 PM
Subject: Re: [jboss-as7-dev] Moving EJB3 code into the AS7 source tree

On 8/24/11 4:08 PM, Stuart Douglas wrote:
> Hi Guys,
>
> While looking at some EJB3 stuff I began to wonder just how much stuff
> from the JBoss EJB3 maven artefacts we actually use. Even though there
> is a lot of artefacts, it turns out that we use around 75 classes from
> EJB3, and more than half of them are timer service related (It looks
> like a lot of the stuff in the EJB3 package is either legacy stuff that
> is just hanging around).
>
> Given that the majority of the actual EJB logic / implementation is in
> the AS modules (in the EJB and EE modules), I was wondering if it would
> be worth merging the whole of EJB into AS7 and dumping the EJB3
> aggregator project altogether.
>
> I have a branch that does this here (although this branch has not
> migrated any tests yet):
>
> https://github.com/stuartwdouglas/jboss-as/tree/remove
>
> Personally I think this would make it much easier to refactor, and would
> also allow us to remove some adaptor classes between AS7 and EJB3 (e.g.
> AS7 has to sub class the EJB3 interceptors, rather than EJB3 providing
> real jboss invocation interceptors).

I agree 1000% on this. In the past we had already decided to keep the
ejb3 impl in the AS tree, so I think we should avoid splitting off
components that are purely ejb3 specific and don't have use elsewhere.

I haven't reviewed all of this patch, but one thing that I had noticed
earlier is that we have some code that was just copied over and not
really in use (e.g. some broken pool implementations). IMO if we aren't
using / supporting stuff in AS we should just not carry it over.

+1 to both of these.  It would make my life easier on the performance team too.

--
Jason T. Greene
JBoss AS Lead / EAP Platform Architect
JBoss, a division of Red Hat
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