A special kind of <tt>DisabledAccountException</tt>, this exception is thrown when attempting
to authenticate and the corresponding account has been disabled explicitly due to being locked.
<p>For example, an account can be locked if an administrator explicitly locks an account or
perhaps an account can be locked automatically by the system if too many unsuccessful
authentication attempts take place during a specific period of time (perhaps indicating a
hacking attempt).
A special kind of <tt>DisabledAccountException</tt>, this exception is thrown when attempting to authenticate and the corresponding account has been disabled explicitly due to being locked.
<p>For example, an account can be locked if an administrator explicitly locks an account or perhaps an account can be locked automatically by the system if too many unsuccessful authentication attempts take place during a specific period of time (perhaps indicating a hacking attempt).