public PeriodAxis(String label,RegularTimePeriod first,RegularTimePeriod last){
  this(label,first,last,TimeZone.getDefault(),Locale.getDefault());
}

public PeriodAxis ( String label , RegularTimePeriod first , RegularTimePeriod last ) { this ( label , first , last , TimeZone . getDefault ( ) , Locale . getDefault ( ) ) ; }
creates a new axis .
