Jena Location Mapping failed to find configuration - eclipse

Question

i am working with Jena Text Search using SPARQL. It has succeed in compile time and run time but it doesn't show the desired result which is the result should show the URI and the intended text. It looks like error messages but i get the failed description below:
DEBUG org.apache.jena.util.LocationMapper - Failed to find configuration: file:location-mapping.rdf;file:location-mapping.n3;file:location-mapping.ttl;file:etc/location-mapping.rdf;file:etc/location-mapping.n3;file:etc/location-mapping.ttl
DEBUG org.apache.jena.riot.system.stream.JenaIOEnvironment - Failed to find configuration: location-mapping.ttl;location-mapping.rdf;location-mapping.n3;etc/location-mapping.rdf;etc/location-mapping.n3;etc/location-mapping.ttl
The full codes show below:
public class JenaTextSearch {
static {LogCtl.setLog4j();
BasicConfigurator.configure();}
static Logger log = LoggerFactory.getLogger("JenaTextSearch");
public static void main (String ...argv)
{
Dataset ds = createCode();
//loadData(ds, "data.ttl");
queryData(ds);
}
public static Dataset createCode()
{
//base data
Dataset ds1 = DatasetFactory.create();
Model defaultModel = ModelFactory.createDefaultModel();
defaultModel.read("to_index/data.ttl", "N-TRIPLES");
ds1.setDefaultModel(defaultModel);
//define the index mapping
EntityDefinition entDef = new EntityDefinition ("uri", "text", ResourceFactory.createProperty(App.URI_PREFIX,"content"));
Directory dir = null;
try {
dir = new SimpleFSDirectory(Paths.get("index")); //lucene index directory
}
catch (IOException e) {
e.printStackTrace();
}
//join together into a dataset
Dataset ds = TextDatasetFactory.createLucene(ds1, dir, new TextIndexConfig(entDef));
return ds1;
}
public static void queryData(Dataset dataset)
{
String prefix = "PREFIX email: <" + App.URI_PREFIX+">" +
"PREFIX text: <http://jena.apache.org/text#>";
long startTime = System.nanoTime();
System.out.println("Email's content contains 'good'");
String query = "SELECT * WHERE " +
"{?s text:query (email:content 'good')." +
"?s email:content ?text." +
"}" ;
dataset.begin(ReadWrite.READ);
try {
Query q = QueryFactory.create(prefix+"\n"+query);
QueryExecution qexec = QueryExecutionFactory.create(q, dataset);
QueryExecUtils.executeQuery(q, qexec);
}finally { dataset.end();}
long finishTime = System.nanoTime();
double time = (finishTime-startTime)/1.0e6;
System.out.println ("Query "+String.format("FINISH - %.2fms", time));
startTime = System.nanoTime();
System.out.println("Email's content contains 'bad'");
query = "SELECT * WHERE" +
"{(?s ?score ?lit) text:query (email:content 'bad' \"highlight:s:<em class='hiLite'> | e:</em>\")." +
"?s email:content ?text." +
"}" ;
dataset.begin(ReadWrite.READ);
try {
Query q = QueryFactory.create(prefix+"\n"+query);
QueryExecution qexec = QueryExecutionFactory.create(q, dataset);
QueryExecUtils.executeQuery(q, qexec);
} finally { dataset.end() ; }
finishTime = System.nanoTime();
time = (finishTime-startTime)/1.0e6;
System.out.println("Query "+String.format("FINISH - %.2fms", time));
}}
is that a library problem or something? i use Jena 3.9 and 3.13 because it can completely each other, i think. please devise me. thank you.