public List getAllCasesWithLiaison() {
    Transaction transaction = null;
    List<Cases> allCasesWithLiaisonLst = new ArrayList<>();
    try {
    transaction = session.beginTransaction();
    Query query = session.createQuery("from Cases as cases, Liaison as liaison where cases.caseRef = liaison.liaisonCaseRef");
    allCasesWithLiaisonLst = (List<Cases>) query.list();
     } catch (Exception e) {
     e.printStackTrace();
     if (transaction != null) {
     transaction.rollback();
     }
     } finally {
     session.close();
     }
     return allCasesWithLiaisonLst;
}