private void setUp() {
        try {
            Class.forName("org.sqlite.JDBC");
            Connection conn = DriverManager
                    .getConnection("jdbc:sqlite:../DB/ccworkshop.db");
            conn.close();
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(CCWorkshopManager.class.getName())
                    .log(Level.SEVERE, null, ex);
        } catch (SQLException ex) {
            Logger.getLogger(CCWorkshopManager.class.getName())
                    .log(Level.SEVERE, null, ex);
        }
        entityManagerFactory = Persistence
                .createEntityManagerFactory("ccworkshop");
    }