question: getlong convert various types to a long , returning null on error concode_field_sep PlaceHolder placeHolder concode_field_sep Long getLong concode_elem_sep int getInt
target: Long function ( Object arg0 ) { if ( arg0 == null ) return null ; if ( arg0 instanceof Number ) return new Long ( ( ( Number ) arg0 ) . longValue ( ) ) ; if ( arg0 instanceof String ) { try { return new Long ( ( String ) arg0 ) ; } catch ( Exception loc0 ) { return null ; } } return null ; }