Modify a standard webdynpro( RFC import created ) java dictionary?

hackers , geeks .

here is the scenario I imported a RFC model from a non-standard RFC.

the webdynpro i make does not work, i created a jco client and the connection worked.

i have mapped the problem , to the java dictionary created by the import process ,

there is a "Date" type that when i send via the JCO client i send as a String

webdynpro understands the "Date" data type as a java.sql.Date

as a standard behaviour we cant change the standard dictionary

is there a work around ?

or a way to hack away at DEveloper Studio to be able to change the dicionary type ?

thanks in advance ,

Guy