As Axis2 is no longer bound to request-response Web service invocations like in Axis 1.x, it is more open to different service implementations. Axis2 does not care about messages once they are handed over to the message receiver and follows an asynchronous messaging model. Since this new architecture is flexible and highly extensible, Deepal Jayasinghe shows how to invoke non-Java applications using Axis2.

http://www.developer.com/java/other/article.php/10936_3570031_1 [1]