I have now participated to several Tech Days in Saint Petersburg and it's impressive to see the constant growth in attendance (4000+ participants this year!) and interest for Java EE and GlassFish. It's getting harder every year to get off the stage with the number of people asking questions ;)
On the first day I made my way into the "technology showcase" demos right before the keynote to show GlassFish v3 update center and development features (basically a combination of this and that). Unfortunately James couldn't make it so Octavian Tanase, VP of client Java develpoment (I hope I'm getting his title right) delivered a Java (SE, VM, JavaFX) keynote, leaving the server-side part to Oracle's Dennis Leung on the next day. Jerome then presented in the main room in front of about a thousand people about where we are with GlassFish and as expected could leave the room for a while after the talk given all the questions.
Later on the first day I had two back-to-back sessions on Java EE 6, using the same approach as in Devoxx, jFokus and other JUG events, based on code and demos from beginningee6.kenai.com (slides: part 1, part 2). The final part on CDI was taken care of by Jerome on the next day. The keynote on the second day was almost as packed as for the opening one and was delivered by Dennis Leung, Oracle VP of software development. This one was more focused on Java EE, evolution and modularity of the platforms, a demo by Jerome (with some French humor), some very nice words on GlassFish being rock-solid, and closing with the Oracle value-adds such a TopLink, Coherence and the larger WebLogic-based Fusion Middleware application grid offering.
From the few local people I talked to it seems that Dennis' talk was well accepted and it was certainly quite effective to have an Oracle exec speaker deliver messages such as "we take the stewardship for Java role very seriously" or the GlassFish Roadmap. Maybe the most important thing for me was that after all this event was not so much different from the previous Sun-led TechDays.
I'm about to travel to St. Petersburg, Russia in a few hours to attend and present at the Tech Days conference. I've been there several times already and as always I'm looking forward to spending time there. It's always an intense experience both from the working and personal perspective. This time though, the work-related stuff might be a little different.
First, I'm actually not going to present on GlassFish! The reason for that is that Jerome Dochez will be there himself. Jerome is the product architect and I invite you to ask him the hard questions, especially on v3, modularity and the architecture of the product. You can maybe even get to speak a few words of Russian with him if you insist ;) As for me, I'll be presenting Java EE 6 in two different demo-driven sessions, continuing the work started with Antonio Goncalves at Devoxx last year (and available in code form at beginningee6.kenai.com).
Second, as I understand it, this will be a show with Oracle content and thus a bit different from previous years. But James Gosling and others will be there to perpetuate what made this a great event. It will certainly be a good time to meet some of my new colleagues and reconnect with others.
Finally, this will be my first event after we've (Oracle) published the GlassFish roadmap for the couple of years to come, so it will be interesting to see what people have to say about it.
I understand the event will be as crowded this year as the previous year (thousands of developers) if not more crowded. Anyway, time to pack! See you there!
This is a very long overdue post on my trip to the Sun TechDays in Saint Petersburg, Russia.
This was my second trip after last year's event. This one was in a bigger place (a sports/events stadium) and it seemed even more energetic than the previous one. Just like last year I could have some conversations in Russian, but I presented in English (I just don't have the vocabulary and didn't want to have people remember my talk for how funny my Russian was).
Here is a list of the questions (and answers) from this conference :
Q: On which OS does GlassFish has the best performance? A: On the best JVM/Operating System combinaison. The tuning maybe a little different depending on the HW architecture and the GlassFish Performance Tuning Guide may come in handy.
Q: Do you have a performance comparaison vs. JBoss? A: Well, we compare ourselves with other application servers using the SPECjAppServer benchmark. JBoss has not published any results but we believe we are substantially faster.
Q: Do you have a feature comparison to WebSphere (not CE)? A: You may have heard the GlassFish is "WebLogic features at JBoss price". Well you could also use WebSphere in this case (except it doesn't support Java EE 5 yet). One feature we don't currently have is Administration RBAC. This is coming in GlassFish v3. Also if you have dependencies on IBM software or hardware, GlassFish may not be able to fullfil them. Having said this, AIX is a supported platform for GlassFish.
Q: Can JAX-WS RI be used in other App Servers? What about WSIT? A: Metro is GlassFish's one-stop-shop for Web Services and, yes, it can be used in other application servers. The most common cases are Tomcat and JBoss, but also WebSphere. Note that Weblogic 10 already integrated the Web Services stack from GlassFish (albeit an older version, and without WSIT).
Q: Can you do TX with Web Services? A: Yes! It's all part of Metro which implements Web Services-AtomicTransactions (WS-AT) and Web Services-Coordination (WS-Coordination). Check out this link.
Q: How to set up thread pool and connection pool? A: You can do this either with the graphical console or the command-line (asadmin). The GlassFish documentation is your best friend!
Q: How can I make my bread on GlassFish (earn money)? A: We want you to be successful with the technology and us as a result of that! We recently launched an ISV partner program. Expect certification and integrator programs to follow-up soon.
Q: What advantages GlassFish has? (for instance comparatively with Jboss) A: Administration tools (GUI, CLI, JMX) are clearly a differentiator vs. other open source products. Performance (see our SPECjAppServer results). GlassFish is currently in its second implementation of a fully-compliant Java EE 5 product. Documentation is rich and still improving. Clustering is out of the box and fairly painless to configure. The Web Services stack (Metro) is a simple yet powerful one-stop-shop for everything Web Services (including Microsoft interop on advanced web services). GlassFish's OpenMQ JMS implementation is probably its best kept secret. It's high quality with great performance and comes with HA features.
Q: Hibernate and TopLink have extra-functionality than JPA. Would be features of TopLink and Hibernate ported into JPA? A: I would encourage you to look into JPA 2.0. It adds many of the popular features from those two products such as criteria. The reference implementation for JPA 2.0 will be EclipseLink and as such integrated into GlassFish v3.
Q: I have memory leaks with GlassFish. On the application server only simple JavaServer Faces page is deployed. How can I file a bug? Where would be better to ask about possible workaround? A: We've fixed bugs in earlier 1.x releases and there is no known leak in the current versions. I would encourage you to update to a recent version (v2ur2 is the latest as of this writing) if you are not there already. Having a support contract (see benefits) is clearly your best chance to solve the problem fast. It can provide patches for such issues without forcing you to upgrade for instance. You can also file bugs here
Q: Who have used GlassFish for business? A: Customers listed on the "Stories" blog are all GlassFish production customers. Interesting customers include Wotif.com, the FAA, RTL, TravelMuse, Carrefour, Net Entertainment, 1Sync and more. We have many more using it in production but not everyone is willing to share this information publicly. Having said this we're working hard on publishing more references soon.
Q: Is hot redeploy supported (I do not like to restart server even time to time) A: Yes, see this documentation. Also, IDE integration (NetBeans, Eclipse) can come in handy.
Q: Is it true, that TomCat is included in GlassFish? A: Well, while Sun is the original creator of Tomcat, the GlassFish team optimized Tomcat to add things like Grizzly to enhance the performance. Having said this, any application running inside Tomcat (even using Valves) should run unmodified in GlassFish. If it doesn't, make sure to file a bug or share your experience on the GlassFish Forums.
Thank you to Denis Fokin for helping me with this list of questions.
To get a feel for the conference, here's a movie (I'll admit I don't know who put it together, but it looks nice):
I'm back from Milan. Three days with GlassFish Day and Sun Tech Days went by very fast which was to be expected given the agenda.
This was the first time we were having a GlassFish Day as part of the bigger Sun Tech Days event (and the first one outside the US) and I believe this is a good success as of all the ancillary events, only NetBeans had more participants (similar to CommunityOne in San Francisco, back in May). The presentation slides for GlassFish Day are posted here.
The event took place in a hotel in the suburbs of Milan. The first day had heavy rain which seemed to heavily affect traffic in Milan so I was quite pleased with the number of people showing up and staying throughout the afternoon, even with the most annoying fire alarm (when are you supposed to know that it's for real?).
The language barrier was not too much of a problem once t-shirts were promised in exchange of the first questions. From the questions we asked the audience and the survey results, it seems that Tomcat, Spring and Hibernate are heavily used. What was also interesting to learn is that 50% had already used Java EE 5 and that several people were already in production with GlassFish V1.
Here's a list of questions and answers gathered from those few days in Italy:
• Q: I have a CMS application deployed on many GlassFish V1 domains, can I easily migration to GlassFish V2?
A: Look at the asupgrade binary in you GlassFish distribution (see also  and 
• Q: Can you explain how load-balancing work?
A: A picture is worth a thousand words. The notion of sticky load-balancing is an important one. See also related documentation.
• Q: I have an application running on Tomcat 5, how well should it run on GlassFish?
A: Fairly well. Give it a try and report an problems. GlassFish supports some Tomcat-specific features such as valves too.
• Q: I have already deployed GlassFish v2 beta2 in production, how can I upgrade to the final version?
A: Again, the asupgrade binary in you GlassFish distribution is probably a good choice and this online upgrade blog post should also help.
• Q: We are trying to deploy OpenSSO and OpenDS with a hardware load-balancer. Is there any documentation available?
A: Maybe this blog post can help. Feel free to email me (email@example.comREMOVE) if you have further specific questions. I'd like to know more about your use of OpenSSO.
• Q: Do you plan to have content-based message routing in a future version of OpenMQ?
A: Yes, this is in the roadmap for the next major release.
All the TechDays presentations from Milan should be available soon from this page.
Imola's JBI binding components are described and can be downloaded from here: (CORBA, CICS)
Just as a reminder, we are still (always) looking for people willing to be part of our Stories blog. The intent is to share your experience with other GlassFish users. Ideally such exposure should help you as well and in any case we have a thank-you gift for going through the legal/approval process inside your company. We're trying to make this a win-win situation. If you're interested, please send an mail to firstname.lastname@example.orgREMOVE.
Given for how long I have been reading his prose, chat transcripts and watching his recent SDNtv interviews, it was very nice meeting Ed Ort from the java.sun.com team during those couple of Italian days.
I will not spend a great deal of time bitching on the Hotel service. Others have done this well enough. Let me just say that between the time I started talking to the guy at the front desk and the time I received the key to my room, he answered the phone eleven times (yes, 11)! French service still has ways to go (it's actually making good progress), but the one I had in this hotel is just terrible.
I'm still not sure if Saint Petersburg or Paris should be declared the most beautiful city in the World (according to me), but for this week I'll settle for Saint Petersburg where I'm staying for the Sun Tech Days which are starting this Wednesday.
I'll be presenting on GlassFish and JAX-WS + WSIT. Although I do speak some Russian, it's probably not sufficient to give an effective presentation... So just like for my fellow presenters my talk will be translated to Russian.
Sur le même principe (le même code en réalité) qu'au mois de juin dernier pour le JavaDay de Versailles, j'ai réalisé une carte des inscrits aux Sun TechDays qui débutent lundi à La Défense (cliquez sur l'image pour obtenir un gif animé).
Dans les dernières nouvelles:
• install parties NetBeans, GlassFish et Solaris
• accès Wifi gratuit (merci Fon)
• un iPod à gagner pour ceux qui viendront tôt et un voyage tout frais payés à JavaOne (mai 2007)
L'événement est gratuit. Christophe vous dit pourquoi y aller. Dans les nouveautés récentes, la participation de l'OSSGTP, de Fon, de Silicon Sentier, Ruby France et de nouveaux sponsors (dont Adobe dont l'actualité technologique est riche). L'agenda sera bientôt mis à jour avec les noms des intervenants (pas mal de francophones) et des événements supplémentaires (essentiellement communautaires).
Vous pouvez désormais vous enregistrer pour les Tech Days de Paris, du 19 au 21 Mars 2007 à La Défense. L'agenda préliminaire est ici (Open Solaris Day, NetBeans Day, Java ME, Sun Tech Days, Java University Training). Le tout gratuit.