[rules-users] Problem with function

Hi ! I have a problem with functions in Drools file. In a drl file, I defined a function, but a parameter of this function must be "final". And the drl file don't compile... this is my code : [CODE] function void changeName(final JOnAS jonas, Integer first) { .... } [\CODE] And this is the error : Syntax error on token "final", invalid Type Is it possible to have a final variable as parameter in a function ? Can you help me ?! Thanks ! Cheers Guillaume