question: private List < ValidationError > checkForNoRatesPresent ( ) { if ( overheadRates != null && overheadRates . isEmpty ( ) ) return Arrays . asList ( new ValidationError ( "overheadrate" , "estimate.overhead.altleastone_overheadrate_needed" ) ) ; else return null ; }
target:  This method checks if no overhead rates have been entered for the Overhead.