public class RepositoryAPI {

public static void main(String[] args) {

    File dataDir = new File("C:\Temp\sesameRepo\KB_Exemplar");
    try {
        Repository repo = createRepository(dataDir);
        addRDFToRepository(repo);
    } catch (RepositoryException e) {
        e.printStackTrace();
    }
}

private static Repository createRepository(File dataDir) throws RepositoryException {
    Repository repos = new SailRepository(new MemoryStore(dataDir));
    repos.initialize();
    return repos;
}

private static void addRDFToRepository(Repository repo) {
    File file = new File("C:\LDMVelocityWork\KB_Quality_Exemplar_BE_Ownership.ttl");
    String baseURI = "http://data.jpmchase.net/cib/cia/KBQualityExemplar";
    try{
        RepositoryConnection con = repo.getConnection();
        try{
            con.add(file, baseURI, RDFFormat.RDFXML);
        } catch (IOException e) {
            e.printStackTrace();
        }
        finally {
              con.close();
           }
    }
    catch (OpenRDFException e) {
        }
}

}

File file = new File("C:\LDMVelocityWork\KB_Quality_Exemplar_BE_Ownership.ttl");
String baseURI = "http://data.jpmchase.net/cib/cia/KBQualityExemplar";
try{
    RepositoryConnection con = repo.getConnection();
    try{
        con.add(file, baseURI, RDFFormat.RDFXML);
    } catch (IOException e) {
        e.printStackTrace();
    }
    finally {
          con.close();
       }
}
catch (OpenRDFException e) {
    }

con.add(file, baseURI, RDFFormat.RDFXML);

con.add(file, baseURI, RDFFormat.TURTLE);

conn.export(new TurtleWriter());