Sesame SPARQL parser perf regression

ParseTest.java

package test;

import org.apache.commons.math.stat.descriptive.SummaryStatistics;
import org.openrdf.query.parser.sparql.SPARQLParser;

public class ParseTest {


	public static void main(String[] args) throws Exception  {
		final String q = "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n" +
						 "PREFIX rev: <http://purl.org/stuff/rev#>\n" +
						 "PREFIX foaf: <http://xmlns.com/foaf/0.1/>\n" +
						 "PREFIX bsbm: <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/vocabulary/>\n" +
						 "PREFIX bsbm-export: <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/vocabulary/export/>\n" +
						 "PREFIX dc: <http://purl.org/dc/elements/1.1/>\n" +
						 "\n" +
						 "CONSTRUCT {  <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:product ?productURI .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:productlabel ?productlabel .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:vendor ?vendorname .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:vendorhomepage ?vendorhomepage .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:offerURL ?offerURL .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:price ?price .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:deliveryDays ?deliveryDays .\n" +
						 "             <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm-export:validuntil ?validTo }\n" +
						 "WHERE { <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm:product ?productURI .\n" +
						 "        ?productURI rdfs:label ?productlabel .\n" +
						 "        <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm:vendor ?vendorURI .\n" +
						 "        ?vendorURI rdfs:label ?vendorname .\n" +
						 "        ?vendorURI foaf:homepage ?vendorhomepage .\n" +
						 "        <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm:offerWebpage ?offerURL .\n" +
						 "        <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm:price ?price .\n" +
						 "        <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm:deliveryDays ?deliveryDays .\n" +
						 "        <http://www4.wiwiss.fu-berlin.de/bizer/bsbm/v01/instances/dataFromVendor29/Offer54835> bsbm:validTo ?validTo }\n";

		SummaryStatistics stats = new SummaryStatistics();

		SPARQLParser parser = new SPARQLParser();

		String base = "http://example.org";

		for (int i = 0; i < 100; i++) {
			parser.parseQuery(q, base);
		}

		for (int i = 0; i < 75000; i++) {
			long s = System.nanoTime();
			parser.parseQuery(q, base);
			stats.addValue(System.nanoTime() - s);
		}

		System.err.println(stats);
	}

}