Implement reports functionality

I need a freelancer to implement functionality for 6 reports. Comments: 1) The code is Java 2) The code must be generic and support easily of adding new reports in the future - each report should be handled by a specific class - name of classes are loaded dynamically at runtime from properties file (properties file should have the classes package and load them by reflection) 3) The reports should be built using jasperreports I will provide the HTML files so you can see the data and filters needed by each report.