Requests that the Pronto executor stops any future file checks and then
waits (subject to the supplied timeout) until the ceasation of any
ongoing checking has been confirmed.
If a shutdown hook as been registered, the hook is deregistered and the
method returns immediately unless JVM shutdown is in progress in which
case the method blocks (subject to the specified timeout) until
termination state transitions have been completed.
Requests that the Pronto executor stops any future STDIN checks and then
waits (subject to the supplied timeout) until the ceasation of any
ongoing checking has been confirmed.