public StringType addNotesElement() {//2 
      StringType t = new StringType();
      if (this.notes == null)
        this.notes = new ArrayList<StringType>();
      this.notes.add(t);
      return t;
    }
public StringType addNotesElement ( ) { StringType t = new StringType ( ) ; if ( this . notes == null ) this . notes = new ArrayList < StringType > ( ) ; this . notes . add ( t ) ; return t ; }
syntactic sugar