question: public NTPServerTimeProvider ( String [ ] ntpServers ) throws UnknownHostException , SocketException { client = new NTPUDPClient ( ) ; setServers ( ntpServers ) ; if ( servers . isEmpty ( ) ) { throw new UnknownHostException ( ntpServers [ 0 ] ) ; } setSocketTimeout ( ) ; }
target:  Creates NTPServerTimeProvider with a custom list of NTP server addresses