What is Easy Rules?
Easy Rules is a simple yet powerful Java Rules Engine providing the following features :
Lightweight framework and easy to learn API
POJO based development with annotation programming model
Useful abstractions to define business rules and apply them easily using Java
The ability to create composite rules from primitive ones
Dynamic rule reconfiguration at runtime using JMX
You can find some slides about Easy Rules on speaker deck.
All Easy Rules documentation can be found here : http://www.easyrules.org
Easy Rules is released under the MIT License.