私は常に正常に動作している jena を使用した Java プログラムを持っています。
プログラムがこのクエリを実行する昨日から
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
DESCRIBE <http://dbpedia.org/resource/Christopher_Moore_%28author%29>
エンドポイント「http://dbpedia.org/sparql」
（私が思うに）DBpediaが何も返さないため、このエラーが発生します
FINE: Executing query:
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
DESCRIBE <http://dbpedia.org/resource/Christopher_Moore_%28author%29>
GRAVE: ERROR [http-thread-pool-8080-(2)] (RDFDefaultErrorHandler.java:44) - Premature end of file.
AVVERTENZA: StandardWrapperValve[jsp]: PWC1406: Servlet.service() for servlet jsp threw exception
com.hp.hpl.jena.shared.JenaException: org.xml.sax.SAXParseException: Premature end of file.
at com.hp.hpl.jena.rdf.model.impl.RDFDefaultErrorHandler.fatalError(RDFDefaultErrorHandler.java:45)
at com.hp.hpl.jena.rdf.arp.impl.ARPSaxErrorHandler.fatalError(ARPSaxErrorHandler.java:35)
at com.hp.hpl.jena.rdf.arp.impl.XMLHandler.warning(XMLHandler.java:225)
at com.hp.hpl.jena.rdf.arp.impl.XMLHandler.fatalError(XMLHandler.java:255)
at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl$XMLDeclDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at com.hp.hpl.jena.rdf.arp.impl.RDFXMLParser.parse(RDFXMLParser.java:142)
at com.hp.hpl.jena.rdf.arp.JenaReader.read(JenaReader.java:158)
at com.hp.hpl.jena.rdf.arp.JenaReader.read(JenaReader.java:145)
at com.hp.hpl.jena.rdf.arp.JenaReader.read(JenaReader.java:215)
at com.hp.hpl.jena.rdf.model.impl.ModelCom.read(ModelCom.java:197)
at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execModel(QueryEngineHTTP.java:161)
at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execDescribe(QueryEngineHTTP.java:154)
at com.hp.hpl.jena.sparql.engine.http.QueryEngineHTTP.execDescribe(QueryEngineHTTP.java:152)
at it.unipr.aotlab.dbsoi.sparqlclient.SPARQLClient.executeDescribeQuery(SPARQLClient.java:96)
at it.unipr.aotlab.dbsoi.logic.DbSoiLogic.getArtistData(DbSoiLogic.java:200)
at it.unipr.aotlab.dbsoi.logic.DbSoiLogic.execute(DbSoiLogic.java:99)
at org.apache.jsp.DbSoi_jsp._jspService(DbSoi_jsp.java from :65)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:406)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:483)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:373)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.xml.sax.SAXParseException: Premature end of file.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
... 52 more
また、「http://dbpedia.org」でデフォルトのデータセット名（グラフIRI）を設定するアドレス「http://dbpedia.org/sparql」のWebブラウザーにクエリを配置しようとしました
しかし、私はエラーが発生します
XML のエラー解釈: 重要な要素の詳細情報: http://dbpedia.org/sparql?default-graph-uri=http%3A%2F%2Fdbpedia.org&query=PREFIX+rdfs%3A+%3Chttp%3A%2F%2Fwww.w3 .org%2F2000%2F01%2Frdf-schema%23%3E++++++++%0D%0ADESCRIBE+%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FAlbert_Camus%3E&format=application%2Frdf%2Bxml&timeout=0&debug=on Linea numero 1, collonna 1 :
誰かが私を助けることができますか？