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