Too many connections

Question

I am getting Too many connections error. If I increase max_connections number it doesn't come but it will eventually come.I am creating new session in each method but also closing it. This is sample method:

      public List<ActivityLog> loadRecords(Integer stageId) {
      Session session = createSession();
      List<ActivityLog> resultsSelect = null;
      try {
        String hqlSelect = "FROM ActivityLog C WHERE stage_id=:stageId and         status=:status";
        Query querySelect = session.createQuery(hqlSelect);
        querySelect.setParameter("stageId", stageId);
        querySelect.setParameter("status", "Select");
        resultsSelect = querySelect.list();
    } finally {
        session.close();
    }
    return resultsSelect;

}

This is my connection factory:

public static SessionFactory createSessionFactory(Configuration configuration) {
    serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
    sessionFactory = configuration.buildSessionFactory(serviceRegistry);
    return sessionFactory;
}

public static Session createSession() {
    Configuration cfg = new Configuration();
    cfg.configure("hibernate.cfg.xml");
    SessionFactory factory = createSessionFactory(cfg);
    Session session = factory.openSession();
    return session;
}

Here is the error I am getting: enter image description here Please help me.

Error:

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection, message from server: "Too many connections"