join list to string , separator is '' , '' join null = '' '' ; join = '' '' ; join a , b = `` a , b '' ; concode_field_sep String DEFAULT_JOIN_SEPARATOR concode_field_sep int getSize concode_elem_sep List<V> invertList concode_elem_sep boolean isEmpty concode_elem_sep int addDistinctList concode_elem_sep int distinctList concode_elem_sep boolean addListNotNullValue concode_elem_sep V getNext concode_elem_sep boolean isEquals concode_elem_sep boolean addDistinctEntry concode_elem_sep V getLast
String function ( List < String > arg0 ) { return join ( arg0 , DEFAULT_JOIN_SEPARATOR ) ; }