question: protected List < Item > toItems ( List < Model > models ) { if ( models == null ) { return Collections . emptyList ( ) ; } int size = models . size ( ) ; List < Item > items = new ArrayList < > ( size ) ; for ( int i = 0 ; i < size ; i ++ ) { items . add ( toItem ( models . get ( i ) ) ) ; } return items ; }
target:  helper to get a list of item from a list o model