private void persistSectionInstructor(Section section, Instructor instructor)
{
EntityManager em = emf.createEntityManager();
EntityTransaction tx = em.getTransaction();
Section dbSection = em.find(Section.class, section.getId());
Course dbCourse = em.find(Course.class, section.getCourse().getId());
Instructor dbInstructor = em.find(Instructor.class, instructor.getId());
dbSection.setInstructor(dbInstructor);
dbInstructor.addSection(dbSection);
if (dbCourse.getInstructors().contains(dbInstructor))
{
LOGGER.warn("Instructor already in the course");
} else