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ArthurVaisse-Lesteven edited comment on JENA-433 at 4/15/13 8:08 AM: --------------------------------------------------------------------- It seems that the bug come from this code: [...] if ( statusLine.getStatusCode() == 200 ) { String contentType = response.getFirstHeader(HttpNames.hContentType).getValue() ; [...] at org.apache.jena.riot.web.HttpOp.httpResponse(HttpOp.java:469) ( sorry for the mistake about the line number! ) If no content type is received, the "response.getFirstHeader(HttpNames.hContentType)" object is null, and null.getValue() -> NullPointerException(). was (Author: avl): It seems that the bug come from this code: [...] if ( statusLine.getStatusCode() == 200 ) { String contentType = response.getFirstHeader(HttpNames.hContentType).getValue() ; [...] at org.apache.jena.riot.web.HttpOp.httpResponse(HttpOp.java:469) If no content type is received, the "response.getFirstHeader(HttpNames.hContentType)" object is null, and null.getValue() -> NullPointerException(). > Null Pointer Exception coming with a message without content type > ----------------------------------------------------------------- > > Key: JENA-433 > URL: https://issues.apache.org/jira/browse/JENA-433 > Project: Apache Jena > Issue Type: Bug > Components: Jena > Affects Versions: Jena 2.10.0 > Reporter: ArthurVaisse-Lesteven > Priority: Minor > Labels: bug > Original Estimate: 1h > Remaining Estimate: 1h > > I use Jena to send request to a Joseki SPARQL endpoint. With Jena 2.10.0, > after each request i got a "NullPointerException". > It seems that Joseki unlike Fuseki SPARQL endpoint doesn't send a content > type, and the HttpOp class wait for this content type. But content type is > suppose to be optional. > I can't post the error trace here, but i remember it was coming from HttpOp > l.442. > I solved the problem by using the older version of Jena for the moment. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira