The threshold must be a DOUBLE value greater than 0.0.
To avoid locking out the super-user, the password of the database owner of a credentials database never expires.
A warning is raised when a user logs in and the remaining lifetime of that
user's password is less than this proportion of the maximum password lifetime.
That is,
To set the lifetime of the password, use the
0.125 (1/8).
Static. For system-wide properties, you must reboot