net.sf.hibernate.MappingException: property mapping has wrong number of columns: net.sf.hibernate.mapping.Subclass.history

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net.sf.hibernate.MappingException: property mapping has wrong number of columns: net.sf.hibernate.mapping.Subclass.history
at net.sf.hibernate.mapping.PersistentClass.validate(PersistentClass.java:237)
at net.sf.hibernate.cfg.Configuration.validate(Configuration.java:555)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:712)

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