@Override
    public void setString( String s ) {
        if( s.length() == 0 )
            s = "[]";
        else{
            if( Character.isWhitespace( s.charAt( 0 ) ) || Character.isWhitespace( s.charAt( s.length()-1 ) )){
                s = "[" + s + "]";
            }
            else if( s.charAt( 0 ) == '[' && s.charAt( s.length()-1 ) == ']' ){
                s = "[" + s + "]";
            }
        }
        
        super.setString( s );
    }