J2EE DashBoard application-Testing tools

Hi

We are developing an Business Inteligence-J2EE DashBoard application, where complex information is shown in the form of charts. Kindly let us know if there are some tools which can help us in doing regression testing on the successive builds.

This application is very similar to, Warehousing tools, where raw data(transaction) is fed to the system, and agregated-filtered data is shown in the form of charts.

Kindly let us know if there are any testing automation tools in the market.

Thanks
sunder