Can password never expires be set on a user in the WAS J2EE

Hi,

We have a Portal that will be accesed by diferent type of users, one of those types is required that their password never expires cause they don´t even know their passwords.

Is there a way of doing this by standar configuration?

I´m thinking of making a program that checks the days since the user changed password and when close change it automaticaly or something like that but maybe there is a standar option already in there.

Thanx in Advanced!

Kind Regards,

Gerardo J