Speaking at TSSJS Vegas this year was great. I got to do four talks - a Java EE 6 overview, a Resin demo, a CanDI/CDI demo as well as a talk on the JCP. The Resin talk was one of the keynotes for TSSJS. All talks were well attended and the crowd was great. People seemed genuinely interested in Java EE 6, the Web Profile, CDI and Resin. I got a ton of questions for Q & A, one-on-one afterwards as well as at the booth. Folks were particularly interested in some of the CDI/EJB 3.1 features as well as our portable extensions for JUnit, iBATIS, Quartz, using EJB annotations on managed beans, etc. A good number of people asked for the example code both for the CanDI and Resin talks. I personally enjoyed taking about open participation in the JCP although it was a relatively short and non-technical talk. We will be posting the slides as well as the code examples on the website soon. I hope we get similar success in JavaOne as well as other conferences.

We at Caucho are very excited in working steadily towards getting Resin certified on the recently finalized Java EE 6 Web Profile. Along with GlassFish and JBoss, we are aiming to provide one of the earliest solid implementations for Java EE 6. In fact, Resin is the only major application server focused solely on delivering a very lightweight implementation targeting just the Web Profile.

This blog entry briefly discusses the Java EE 6 Web Profile, what it offers and how it fits with the lightweight development philosophy of Resin as well as the details of our implementation including Resin extensions to the Java EE 6 Web Profile.

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We’ve used test-driven development from the beginning of Caucho, almost 12 years now, and it heavily influences our development, refactoring, and also our release cycle. Today, we’re in the final two weeks of the release cycle for 4.0.1 which means passing our regression test suite and working through load testing.

Each week in our release cycle is influenced by our TDD methodology. For Resin, we aim for an eight week release cycle, and usually slip a week or two so it ends up being ten-ish weeks.

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I’ve put together a CanDI binding pattern tutorial (pdf) for four major binding patterns: services, resources, startup, and plugin/extensions.

Focusing on common CanDI patterns should show how CanDI is used in full applications like SubEtha maillist manager, and avoid the temptation to focus on complicated features that only 1% of applications would ever need.

In the tutorial, the key CanDI classes are:

• @Current - the service and unique bean binding annotation.
• @BindingType - the resource custom binding annotation used for declarative injection.
• Instance<T> - the extension/plugin iterator and programmatic bean factor.
• @Any - the special annotation for extension/plugin matching of any registered beans

Studying the source code for a full application is the best way to really understand a technology like Java Injection (CanDI, JSR-299). Fortunately, Jeff Schnitzer, Scott Hernandez, and Jon Stevens have created a subetha mail, an open-source Java implementation of a mail list manager (like mailman) using CanDI extensively. Because subetha is also a sophisticated JavaEE application using EJB @Stateless beans, JMS queues with EJB @MessageDriven beans, servlets, and Hessian remote services, it’s a great overall application to study.

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The latest draft of JSR-299 for Java Injection is now available, and we’ve been madly repackaging and renaming our test cases to follow. The biggest change is the name of the spec: Java Contexts and Dependency Injection (Java CanDI), instead of the old WebBeans. (The image at the right is supposed to be a Resin lollipop.)

Along with a new Resin 4.0 snapshot, I’ve done a quick pass at the Resin Injection documentation
and updated the JavaDoc.

A quick overview of the new packaging and examples follows:
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