Can the users be forced to change their passwords at first login?

Yes, as a site administrator you can configure the CollabNet TeamForge site options to force the users to change their passwords at first login.

Setting the REQUIRE_USER_PASSWORD_CHANGE attribute as true in the site-options.conf file enforces password change on first login into CollabNet TeamForge.

Tip: You can not force password change on a user who had self-created the user account, or if a password-request had been raised for the user or if an administrator had reset the login password for that user.