Exception while initializing hibernate util..
org.hibernate.AnnotationException: @OneToOne or @ManyToOne on Survey.Question.surveyID references an unknown entity: int
	at org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:97)
	at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processEndOfQueue(InFlightMetadataCollectorImpl.java:1815)
	at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1759)
	at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1646)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:287)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:84)
	at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:474)
	at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:85)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:689)
	at Database.HibernateUtil.loadSessionFactory(HibernateUtil.java:38)
	at Database.HibernateUtil.<clinit>(HibernateUtil.java:20)
	at Database.UserDAO.main(UserDAO.java:118)
Exception while getting session..
java.lang.NullPointerException
	at Database.HibernateUtil.getSession(HibernateUtil.java:46)
	at Database.UserDAO.main(UserDAO.java:118)
session is discovered null
java.lang.NullPointerException
	at Database.UserDAO.main(UserDAO.java:119)