Project p1 = new GovernmentProject();
p1.setName("GovernmentProject");
Project p2 = new CovertProject("classA");
p2.setName("CovertProject");
ProjectEmployee pe1 = new ProjectEmployee();
pe1.setEmployee(emp);
pe1.setProject(p1);
ProjectEmployee pe2 = new ProjectEmployee();
pe2.setEmployee(emp);
pe2.setProject(p2);
//TODO create another employee and assign to govt. and verify collection type props
entityManager.persist(emp);
entityManager.persist(p2);