It has to be http://dbpedia.org/sparql
Hello I am getting this exception when I run jena against dbpedia. What is the problem? ++++++++++++++++++++++++++++++++++ :WARN No appenders could be found for logger (org.apache.jena.riot.system.stream.JenaIOEnvironment). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. HttpException: java.net.UnknownHostException: dbpedia.org: Unexpected error making the query: java.net.UnknownHostException: dbpedia.org at com.hp.hpl.jena.sparql.engine.http.HttpQuery.rewrap(HttpQuery.java:417) at com.hp.hpl.jena.sparql.engine.http.HttpQuery.execGet(HttpQuery.java:358) at com.hp.hpl.jena.sparql.engine.http.HttpQuery.exec(HttpQuery.java:295) at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execResultSetInner(QueryEngineHTTP.java:346) at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execSelect(QueryEngineHTTP.java:338) at jenaclass.main(jenaclass.java:24) Caused by: java.net.UnknownHostException: dbpedia.org at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$2.lookupAllHostAddr(Unknown Source) at java.net.InetAddress.getAddressesFromNameService(Unknown Source) at java.net.InetAddress.getAllByName0(Unknown Source) at java.net.InetAddress.getAllByName(Unknown Source) at java.net.InetAddress.getAllByName(Unknown Source) at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45) at org.apache.http.impl.conn.DefaultClientConnectionOperator.resolveHostname(DefaultClientConnectionOperator.java:278) at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:162) at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:294) at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:643) at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:479) at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906) at org.apache.http.impl.client.DecompressingHttpClient.execute(DecompressingHttpClient.java:137) at org.apache.http.impl.client.DecompressingHttpClient.execute(DecompressingHttpClient.java:118) at org.apache.jena.riot.web.HttpOp.exec(HttpOp.java:1108)
-- Lorenz Bühmann AKSW group, University of Leipzig Group: http://aksw.org - semantic web research center
