code: private static Class < ? > getHibernateClass() {
      	Class < ? > cl = null;
      	
      	try {
              cl = Class.forName(HIBERNATE_CLASS);
      	} catch (ClassNotFoundException e) {
              // in this case jar which contain 
      		// Hibernate class not found
          }
      	return cl;
      }
docs: Return Hibernate class instance
  @return Hibernate class instance
  if it exist