Esper is a lightweight kernel written in Java which is fully embeddable into any Java process. It enables the development of Event-Driven Applications in Java.

The Apache Axis2 architecture assumes neither one message exchange pattern, nor synchronous/asynchronous behavior. This article explains messaging concepts and how Axis2 can be used to implement several well-known messaging scenarios from just two bas...

Koen Vervloesem shows how you can use Ant, the popular Java build utility, to run diagnostics on a remote system and collect troubleshooting information automatically, instead of figuring things out over the phone.

Learn how to connect to Amazon Web Services (AWS) with a servlet or JSP. Provides step by step instructions for using the Apache Axis open source SOAP toolkit to create a Java-SOAP package for interacting with AWS.

Interesting visionary article on Jini, JavaSpaces for collaborative workplaces.[O'Reilly]

Andrew Newton reviews an alternative to Property files.

Mark Petrovic shows how to use a development-time SecurityManager that logs applications' calls and builds a suitable Java security policy file.

Article that examines various Java security services, including Java Security Manager, Security Provider Architecture, and Authentication components.

Article by Craig Pfeifer in ONJava.com. Purpose of TRaX (Java API for specifying and executing XML transformations), code example, links.

Bruce Tate's Beyond Java suggests Ruby as a top contender to displace Java. Tate, James Duncan Davidson, Robert Cooper and Bill Venners opine on Ruby and its challenge to Java. O'Reilly Media.