Alois Reitbauer from dynatrace shared a presentation about Java EE performance. It's a more general overview. But it gives a great summary about things, that could go wrong. Of course, you can track them down with a couple of different tools from differ…
Continue ReadingYou now know a bit more about the heap sizes (part I) . Next is to dive into the actuall garbage collection algorithms. Choosing the garbage collection algorithm The Java HotSpot JM (up to version 5) includes four garbage collectors. All the collectors are…

The Java SE is used for a wide variety of applications. Beginning with small applets on desktops to web services or Java EE applications on large servers. In support of this diverse range of deployments, the HotSpot virtual machine implementation provides mul…

Sorry about that. Some personal advertising. German iX magazin ( http://www.ix.de ) publishes a new article of mine about JPA 2.0 in the upcomming 03/2010 issue. German abstract: Java Persistence API 2.0 Fortgeschrittenes Mapping: "Überholtes Getrieb…
Continue ReadingI came across a nice post from viralpatel.net . They are showing how to implement a simple url-shortener called "shorty". Really nice. But the technology decision was not that awesome. I am ok with Hibernate. But Struts? No. Thanks :) That reminds m…

If you work with Java EE projects, you have probably seen this before. You have a big machine. Some GB of RAM, a couple of cores. And a "normal" application. Nothing to worry about. Profilling is unremarkable and everything works fine on your dev an…

Oracle announced on February 9, 2010 that JavaFX(TM) and Java(TM) platforms are being used as the Official Rich Client Technology by the Vancouver Organizing Committee for the 2010 Olympic and Paralympic Winter Games (VANOC). Sport fans around the globe can…

Ok. The run started. Even partly. The first Call for Papers (CfP) is online. Starting with the 2010 JavaOne Call for Papers submissions open since yesterday. The 2010 JavaOne Call for Papers is open from February 10 through 11:59 pm PDT March 14. Submit …
Continue ReadingEverybody comes across this issue from time to time. You have a fresh and exciting project with a couple of developers. The skills of the team members are different and you have to deliver a complete setup of the development environment for all of them. This …

Short summary presentation about the new features in JPA 2.0. New Features of JSR 317 (JPA 2.0) View more presentations from Markus Eisele .
Continue ReadingThe Sun/Oracle merger raised some questions about the future of different components. One of interest to me is the GlassFish Application Server . Beside the Oracle WebLogic it is the next Java EE Application Server in Oracle's portfolio. Not really much…

As you might have read: I was switching office rooms today. Somehow, I really do not like moving at all. But one good thing happened. I found some (very) old boxes and put them on my cabinet. Do you remember them? I absolutely need new ones :) @Oracle: Can y…
