Hibernate - Unable to instantiate default tuplizer

[Diego Creador]

Hello friends!


Im having a problem with HIbernate while I tried to inicialize the application, Im pretty new to HIbernate, so I dont have to much idea what could it be.


Here I copy the error trace, and below, the method which have the problem


14:22:25,561 ERROR [jsp:154] java.lang.NullPointerException
at com.aiti.util.OpenSessionOnRestoreViewListener.initConnection(OpenSessionOnRestoreViewListener.java:42)
at com.aiti.util.OpenSessionOnRestoreViewListener.beforePhase(OpenSessionOnRestoreViewListener.java:26)
at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:224)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:95)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:107)
....


And the function is

	private HibernateUtil() {
		try {
			Configuration configuration = new Configuration();

			configuration = configuration.configure();

			_sessionFactory = configuration.buildSessionFactory();
		} catch (Exception e) {
			logger.error(e.getMessage());
		}
	}

I appreciate any help! Thanks in advance

Regards
Diego

[Wouter Oet]

Which class is com.aiti.util.OpenSessionOnRestoreViewListener? I've never heard of it and can't find it.