I've created this simple class named RDFReader for loading a model from a URI from DBpedia:
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.util.FileManager;
public class RDFReader {
public static Model readFromURL(String URL){
try{
return (new FileManager()).loadModel(URL);
}catch(Exception e){
e.printStackTrace();
}
return null;
}
public static void main(String[] args) {
RDFReader.readFromURL("http://dbpedia.org/resource/Pacific_Rim_(film)");
}
}
I've used Jena v2.12.1 as shown in the following snippet of my pom.xml
<dependency>
<groupId>org.apache.jena</groupId>
<artifactId>jena-core</artifactId>
<version>2.12.1</version>
</dependency>
<dependency>
<groupId>org.apache.jena</groupId>
<artifactId>jena-arq</artifactId>
<version>2.12.1</version>
</dependency>
<dependency>
By running this code with Jena v2.12.1 I've got the next exception:
org.apache.jena.riot.RiotException: [line: 21, col: 17] Unknown char: –(8211;0x2013)
at org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandlerStd.fatal(ErrorHandlerFactory.java:136)
at org.apache.jena.riot.lang.LangEngine.raiseException(LangEngine.java:163)
at org.apache.jena.riot.lang.LangEngine.nextToken(LangEngine.java:106)
at org.apache.jena.riot.lang.LangTurtleBase.triples(LangTurtleBase.java:249)
at org.apache.jena.riot.lang.LangTurtleBase.triplesSameSubject(LangTurtleBase.java:191)
at org.apache.jena.riot.lang.LangTurtle.oneTopLevelElement(LangTurtle.java:44)
at org.apache.jena.riot.lang.LangTurtleBase.runParser(LangTurtleBase.java:90)
at org.apache.jena.riot.lang.LangBase.parse(LangBase.java:42)
at org.apache.jena.riot.RDFParserRegistry$ReaderRIOTLang.read(RDFParserRegistry.java:182)
at org.apache.jena.riot.RDFDataMgr.process(RDFDataMgr.java:906)
at org.apache.jena.riot.RDFDataMgr.parse(RDFDataMgr.java:687)
at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:210)
at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:183)
at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:121)
at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:112)
at org.apache.jena.riot.adapters.RDFReaderRIOT.read(RDFReaderRIOT.java:77)
at com.hp.hpl.jena.rdf.model.impl.ModelCom.read(ModelCom.java:253)
at com.hp.hpl.jena.util.FileManager.readModelWorker(FileManager.java:377)
at com.hp.hpl.jena.util.FileManager.loadModelWorker(FileManager.java:308)
at com.hp.hpl.jena.util.FileManager.loadModel(FileManager.java:260)
at edu.polito.rdf.utils.RDFReader.readFromURL(RDFReader.java:12)
at edu.polito.rdf.utils.RDFReader.main(RDFReader.java:20)
However using Jena v2.11.0 the code runs without any problem. So I would like to know:
- Why does the 2.12.1 version of Jena produce this error?
- Is it possible to solve this problem to use the 2.12.1 version of Jena instead of the 2.11.0?.
By the way, I'm using eclipse Luna 4.4.1 and java version "1.8.0_11".