Remove explicit unboxing

src/main/java/org/springframework/samples/petclinic/repository/jdbc/JdbcOwnerRepositoryImpl.java

@@ -108,7 +108,7 @@ public class JdbcOwnerRepositoryImpl implements OwnerRepository {
 
     public void loadPetsAndVisits(final Owner owner) {
         Map<String, Object> params = new HashMap<String, Object>();
-        params.put("id", owner.getId().intValue());
+        params.put("id", owner.getId());
         final List<JdbcPet> pets = this.namedParameterJdbcTemplate.query(
                 "SELECT pets.id, name, birth_date, type_id, owner_id, visits.id, visit_date, description, pet_id FROM pets LEFT OUTER JOIN visits ON  pets.id = pet_id WHERE owner_id=:id",
                 params,