public SetConfigCommand addValue(String name,String value){
  if (add == null) {
    add=new LinkedList<>();
  }
  add.add(Pair.of(name,value == null || value.isEmpty() ? "\"\"" : value));
  return this;
}

public SetConfigCommand addValue ( String name , String value ) { if ( add == null ) { add = new LinkedList < > ( ) ; } add . add ( Pair . of ( name , value == null || value . isEmpty ( ) ? "\"\"" : value ) ) ; return this ; }
add multiple line in config .
