Hey, I have some code that adds query parameters to SPARQL Protocol requests.
According to my quick research, the final HTTP query string depends on com.hp.hpl.jena.sparql.engine.http.Params.httpString(): public String httpString() { StringBuffer sbuff = new StringBuffer() ; boolean first = true ; for (Pair p : pairs()) { if ( !first ) sbuff.append('&') ; sbuff.append(p.getName()) ; sbuff.append('=') ; String x = p.getValue() ; x = Convert.encWWWForm(x) ; sbuff.append(x) ; first = false ; } return sbuff.toString() ; } I see the parameter values being encoded, but not the names, for some reason? Looks like a bug to me. Also, the code depends on URLEncoder.encode(), which implements "application/x-www-form-urlencoded", aka HTML form encoding. To my understanding, this is different from the URI syntax spec: https://tools.ietf.org/html/rfc3986 One of the differences is space encoded as "+" vs. "%20". Am I right that the incorrect encoding is used here (and probably in similar places)? Martynas graphityhq.com