OSGi Dev Con 2009 & OSGi Tooling Summit Roundup

So I’m currently sitting in my hotel lobby waiting till we jump in the hire car off to the airport for our flight home. It’s been a long week – the time zone difference between San Francisco and London is always exhausting and the mental effort of networking, presenting, and talking to customers is always pretty intensive too.

I think the conference was definitely quieter this year – you couldn’t help but feel the shadow of the economic climate hanging over us all – however though volume was down compared to last year, quality seemed to be much higher. My rough market assessment based on talking to people on our exhibition stand was that awareness of OSGi is much improved compared to last year.

Even better for me people really seemed to get what we (Paremus) are about. Last year we were the “RMI guys”. This year people we talked to seemed to get genuinely excited about what our product is a really about: a flexible, scalable solution to provisioning and managing dynamic distributed OSGi based applications in enterprise environments.

Pretty much everyone we talked to was very positive on OSGi as a runtime solution to Java modularisation. However, the problem for its adoption in the enterprise is the backwards compatability issues in moving to an OSGi environment (things like static references and Class.forName are a really bad idea in OSGi) and the fact that OSGi development relies on a reasonable amount of domain specific knowledge.

I think good tooling solutions that work right the way though the stack are crucial to help new developers though the pitfalls of the new classloader space. Unfortunately, tooling support for new developers is pretty disjointed.

Hence, the next part of my post…

We (Paremus) recognised that it does us no good if customers are having difficulty building OSGi based solutions. Therefore, my team mate Derek Baum and I have been working on a solution to developing OSGi bundles which works in both an IDE and headless build environment called Sigil. Prior to OSGi Dev Con Paremus chose to licence Sigil under the Apache licence, as we recognise that tooling is an area where we need support from the community in order to help the community as a whole.

On the Friday, after the end of the conference, I and a number of other representatives with interests in the area of development tooling met at an OSGi Tooling Summit hosted by Yan Pujante at LinkedIn‘s Mountain View offices. The group was pretty large and diverse (as you can see here). The OSGi Alliance’s typical role in this respect is to foster communication (via summits, conference calls etc), then generate one or more RFPs which list a set of requirements for the problem domain, and finally put together a set of RFCs which provide a spec to allow different vendors to work together.

The format of the meeting was an initial intro and positioning statements (i.e. what we were there to achieve). We then moved into a blue sky discussion where we tried to think of a perfect world solution to the OSGi development lifecycle – this stimulated some really interesting conversation which I’ll doubtless follow up on in the next couple of weeks in future blog posts. Finally, we put together a series of use cases headers that captured the major tasks undertaken by developers when building, maintaining and releasing OSGi applications into the wild.

I had a number of really encouraging conversations with Chris Aniszczyk and Peter Kriens who work on PDE and BND respectively, both of which have a lot of cross over with the work I’ve been doing on Sigil.

Chris has just twittered that he’s thinking of changing the name of PDE to BDE which I think is a great idea – perhaps some merging of BDE, Sigil and BND? I think there is likely some common core classes that are useful to all OSGi developers. We’re obviously going to need some domain specific extensions for plugin development, newton development, spring development, etc. but I see these as addons on top of a common OSGi layer.

I guess in a perfect world I’d like to be able to support Maven, Netbeans and IntelliJ users as well. Hopefully I’ll be able to update you in the next couple of months on progress in this area.


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