public JSONArray add(JSONValue value){
  if (value == null) {
    throw new NullPointerException("value is null");
  }
  values.add(value);
  return this;
}

public JSONArray add ( JSONValue value ) { if ( value == null ) { throw new NullPointerException ( "value is null" ) ; } values . add ( value ) ; return this ; }
appends the specified json value to the end of this array .
