DWR – AJAX framework for Java. Easy to use.

XFire – New SOAP framework for Java. Fast and simple.

Spring – application framework. Great for easy configuration and wiring of components. Has built-in support for JMX.


Drools – RETE-based Rules engine. Fast.

ServiceMix – Enterprise Service Bus. Works well with XFire, Spring, and uses Drools for smart routing.

BIRT – Jasper-like reporting tool for Eclipse. While Jasper still rules, BIRT is starting to look good. Includes J2EE report output runtime as well.

That's all for now.