public B addArrayParameter(final String paramName, final List<String> list) {
        for (String value : list) {
            httpParams.addParameter(paramName, value);
        }
        return self();
    }
public B addArrayParameter ( final String paramName , final List < String > list ) { for ( String value : list ) { httpParams . addParameter ( paramName , value ) ; } return self ( ) ; }
Adds a parameter with multiple values to this upload request.

@param paramName parameter name
@param list values
@return self instance