question: is null or its length is 0 concode_field_sep PlaceHolder placeHolder concode_field_sep V getNext concode_elem_sep V getNext concode_elem_sep long getNext concode_elem_sep int getNext concode_elem_sep V getLast concode_elem_sep V getLast concode_elem_sep long getLast concode_elem_sep int getLast
target: boolean function ( V [ ] arg0 ) { return ( arg0 == null || arg0 . length == 0 ) ; }