Updated 28-Oct-2008: Added up-to-date sample links and link to third sample
Last night I presented 'Introduction to SpringSource dm Server' at the Philadelphia Spring User's Group. During this presentation I created a small application called GreenPages, demonstrating all the major aspects of dm Server. I promised the attendees that I would post the application and the [...]

I'm happy to announce the availability of RC2 of the SpringSource dm Server, previously known as the SpringSource Application Platform. This release is feature complete and barring any serious issues will become 1.0 GA in two weeks time.
This release fixes a few critical bugs, upgrades to Tomcat 6.0.18 and updates all code, documentation and [...]

This week the EclipseLink team announced the release of EclipseLink 1.0. I've been using EclipseLink on S2AP for a while now; in fact, I used EclipseLink when developing our JPA load-time-weaving support.

We've yet to upgrade our internal usage to 1.0 - our beta9 was tagged just before the announcement - but I wanted to demonstrate [...]

A lot of people have been asking what exactly the SpringSource Application Platform does for Spring applications to make them run well under OSGi, over and above what you can get out of the box with OSGi and Spring Dynamic Modules. Adrian's post yesterday highlighted some of the general issues, now lets look at a [...]

After many months of feverish coding, I am pleased to announce the beta release of the SpringSource Application Platform 1.0.
At the beginning of 2007 we began discussing possible alternatives to the monolithic and heavyweight application servers with which Enterprise Java has become synonymous. Customers were looking for a platform that was lightweight, modular and flexible [...]

As promised to everyone in my sessions, here are all the code samples that I presented during the conference.
Concurrency and Spring
JMX
Dynamic Languages
Slides will be available from the SpringOne web site.

In the last session of SpringOne yesterday, Dave Syer, Scott Wintermute, Lucas Ward and Wayne Lund all presented on Spring Batch. I didn't actually attend (since I had an early cab ride), but I stuck my head in and was yet again astounded by the amount of interest.
Back at JavaOne we had an immense [...]

Recently I've been doing some work with a client on WAS 6.1. Since we have a number of Spring users on WAS and I need to test the application, I decided it was time to get a copy of WAS running on one of my work laptops. I say 'one of' because I'm currently working [...]

In my last entry I presented a technique for creating strategy classes that take full advantage of any generic metadata that is present in your application. At the end of that entry I showed this code snippet:

EntitlementCalculator calculator = new DividendEntitlementCalculator();
calculator.calculateEntitlement(new MergerCorporateActionEvent());

You'll remember that DividendEntitlementCalculator was defined as:

public class DividendEntitlementCalculator implements EntitlementCalculator<DividendCorporateActionEvent> {
    public [...]

It is a common misconception that I hear when talking with clients that all information about generic types is erased from your Java class files. This is entirely untrue. All static generic information is maintained, and only generic information about individual instances is erased. So if I have a class Foo that implements List<String>, then [...]