question: private static Class < ? > [ ] types ( Object ... values ) { if ( values == null ) { return new Class [ 0 ] ; } Class < ? > [ ] result = new Class [ values . length ] ; for ( int i = 0 ; i < values . length ; i ++ ) { Object value = values [ i ] ; result [ i ] = value == null ? NULL . class : value . getClass ( ) ; } return result ; }
target:  Get an array of types for an array of objects