openRDF.org Issue Tracker http://www.openrdf.org/issues This file is an XML representation of an issue en [RIO-6] NullPointerException on RDF upload http://www.openrdf.org/issues/browse/RIO-6 (See forum threads <a href="http://www.openrdf.org/forum/mvnforum/viewthread?thread=5">http://www.openrdf.org/forum/mvnforum/viewthread?thread=5</a><br/> and <a href="http://www.openrdf.org/forum/mvnforum/viewthread?thread=67">http://www.openrdf.org/forum/mvnforum/viewthread?thread=67</a> )<br/> <br/> A nullpointerexception sometimes occurs on uploading certain types of RDF. Apparantly the SAXFilter sometimes passes a base URI that has no path element. <br/> <br/> Stacktrace:<br/> 2004-04-20 09:46:05:062 [http8080-Processor24] [ERROR ] Unknown error on adding RDF data to repository rdbms-rdfs-db-ET: null<br/> java.lang.NullPointerException<br/> at org.openrdf.util.uri.URI.resolve(URI.java:342)<br/> at org.openrdf.util.uri.URI.resolve(URI.java:287)<br/> at org.openrdf.rio.rdfxml.RdfXmlParser._buildURIFromReference(RdfXmlParser.java:907)<br/> at org.openrdf.rio.rdfxml.RdfXmlParser._getPropertyResource(RdfXmlParser.java:824)<br/> at org.openrdf.rio.rdfxml.RdfXmlParser._processPropertyElt(RdfXmlParser.java:755)<br/> at org.openrdf.rio.rdfxml.RdfXmlParser.emptyElement(RdfXmlParser.java:474)<br/> at org.openrdf.rio.rdfxml.SAXFilter.endElement(SAXFilter.java:420)<br/> at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)<br/> at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)<br/> at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)<br/> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)<br/> at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)<br/> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)<br/> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)<br/> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)<br/> at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)<br/> at org.openrdf.rio.rdfxml.RdfXmlParser._parse(RdfXmlParser.java:365)<br/> at org.openrdf.rio.rdfxml.RdfXmlParser.parse(RdfXmlParser.java:350)<br/> at org.openrdf.sesame.admin.SesameUpload._verifyData(SesameUpload.java:326)<br/> at org.openrdf.sesame.admin.SesameUpload.addRdfModel(SesameUpload.java:222)<br/> at org.openrdf.sesame.admin.RdfAdmin.addRdfModel(RdfAdmin.java:126)<br/> at org.openrdf.sesame.repository.local.LocalRepository.addData(LocalRepository.java:336)<br/> at org.openrdf.sesame.repository.local.LocalRepository.addData(LocalRepository.java:325)<br/> at org.openrdf.sesame.server.http.DataUploadServlet._doPost(DataUploadServlet.java:134)<br/> at org.openrdf.sesame.server.http.SesameServlet.doPost(SesameServlet.java:118)<br/> RIO-6 NullPointerException on RDF upload Bug Major Closed Fixed Arjohn Kampman Jeen Broekstra Tue, 20 Apr 2004 11:21:54 +0200 (CEST) Wed, 2 Mar 2005 11:27:42 +0100 (CET) 1.0 RDF/XML parser 0 Added a check for this situation to the RdfXmlParser which reports the error instead of crashing with a NPE.