program using hibernate does not terminate

Question

I created a program using Hibernate.

The program reaches the main function end, nevertheless the program is running.

I wonder if it happens when SessionFactory is configured using Hibernate Version 4.x.

Is the way to configure wrong?

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manual1_1_first_hibernate_apps.java

public static void main(String[] args) {      args[0] ="list";     if (args.length <= 0) {         System.err.println("argement was not given");         return;     }      manual1_1_first_hibernate_apps mgr = new manual1_1_first_hibernate_apps();      if (args[0].equals("store")) {         mgr.createAndStoreEvent("My Event", new Date());     }     else if (args[0].equals("list")) {         mgr.<Event>listEvents().stream()             .map(e -> "Event: " + e.getTitle() + " Time: " + e.getDate())             .forEach(System.out::println);     }     Util.getSessionFactory().close(); }  private <T> List<T> listEvents() {     Session session = Util.getSessionFactory().getCurrentSession();     session.beginTransaction();     List<T> events = Util.autoCast(session.createQuery("from Event").list());     session.getTransaction().commit();     return events; } 

Util.java

private static final SessionFactory sessionFactory;  /**  * build a SessionFactory  */ static {     try {         // Create the SessionFactory from hibernate.cfg.xml          // hibernate version lower than 4.x are as follows         // # it successful termination. but buildSessionFactory method is deprecated.         // sessionFactory = new Configuration().configure().buildSessionFactory();          // version 4.3 and later         // # it does not terminate. I manually terminated.         Configuration configuration = new Configuration().configure();         StandardServiceRegistry serviceRegistry =                  new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();         sessionFactory = configuration.buildSessionFactory(serviceRegistry);     }     catch (Throwable ex) {         // Make sure you log the exception, as it might be swallowed         System.err.println("Initial SessionFactory creation failed." + ex);         throw new ExceptionInInitializerError(ex);     } }  /**  * @return built SessionFactory  */ public static SessionFactory getSessionFactory() {     return sessionFactory; } 

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The following console log snippets when program terminate and use buildSessionFactory method.

2 08, 2014 8:42:25 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl stop INFO: HHH000030: Cleaning up connection pool [jdbc:derby:D:\Java\jdk1.7.0_03(x86)\db\bin\testdb] 

but if do not use deprecated buildSessionFactory method and terminated(program is running), the above two lines do not appear.

ENVIRONMENT:

  Hibernate 4.3.1  DERBY  JRE 1.8  IntelliJ IDEA 13 

Answer 1

I met this problem also today, and I found the solution is, in the end of your main method (or thread), you should close your Session Factory, like:

sessionFactory.close(); 

And then, your program will terminate normally.

If You use JavaFX 8 in main method add:

@Override public void stop() throws Exception {     sessionFactory.close(); } 

This method will close session factory and destroy thread on program exit.