public ParallelTaskBuilder prepareHttpOptions(String url) {
        reinitIfClosed();
        ParallelTaskBuilder cb = new ParallelTaskBuilder();
        cb.getHttpMeta().setHttpMethod(HttpMethod.OPTIONS);
        cb.getHttpMeta().setRequestUrlPostfix(url);
        return cb;

    }
public ParallelTaskBuilder prepareHttpOptions ( String url ) { reinitIfClosed ( ) ; ParallelTaskBuilder cb = new ParallelTaskBuilder ( ) ; cb . getHttpMeta ( ) . setHttpMethod ( HttpMethod . OPTIONS ) ; cb . getHttpMeta ( ) . setRequestUrlPostfix ( url ) ; return cb ; }
Prepare a parallel HTTP OPTION Task.

@param url
the UrlPostfix: e.g. in http://localhost:8080/index.html.,the url is "/index.html"
@return the parallel task builder