Xaware's data integration software, now at version 5, is released under GPLv2 at xaware.org. Xaware is "designed for SOA, built on standards and plugs into ESBs, application server stacks and embedded applications. XAware has extensive built-in support for database transactions, messaging systems, structured/unstructured text, XML schemas and more. Field-proven, XAware is in production worldwide in over 50 mission critical implementations in the banking, insurance and government sectors.". It is developed on the Java platform, and based on the Spring framework.

Apparently, they became convinced a commercial open source model was the way to go after working with Jboss and Mysql.