Although I may not have the final solution, there is a detail that looks odd to me: your fields account_master_name and account_master_id don't really seem to align with the property names of your Account class. Shouldn't it be id and name? What's weird to me is that it should generate an error when filling the report...
I am not too familiar with Struts, but I don't see how it can affect.
waxwing
2009-06-01 07:38:29