Updating to Hibernate Core 3.2.0.cr2

After updating from Hibernate Core 3.1.2 and Hibernate Annotation 3.1beta8 to Hibernate Core 3.2.0.cr2 and Hibernate Annotations 3.2.0.cr1 I was facing two problems:

1. Caused by: javax.persistence.PersistenceException:
   org.hibernate.cache.CacheException:
   Attempt to restart an already started EhCacheProvider.
   Use sessionFactory.close() between repeated calls to
   buildSessionFactory.
   Consider using net.sf.ehcache.hibernate.SingletonEhCacheProvider.
   Error from ehcache was: Cannot parseConfiguration
   CacheManager. Attempt to create a new instance of
   CacheManager using the diskStorePath "/tmp" which
   is already used by an existing CacheManager.
   
   Solution:
   
   Setting the hibernate property:
   
   hibernate.cache.provider_class=org.hibernate.cache.HashtableCacheProvider
   
   
   Setting the property to net.sf.ehcache.hibernate.SingletonEhCacheProvider may work as well,
   but I haven't test yet.
2. org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class:...
   
   I had a property annotated with @OneToMany targeting an @Embedabble @MappedSuperclass.
   
   I found the solution in the Hibernate Forum:
   
   http://forum.hibernate.org/viewtopic.php?t=959542&highlight=onetomany+
   manytomany+targeting+unmapped+class
   
   To summarize:
   
   You should use @CollectionOfElements instead of @*ToMany, if your association is not pointing to an entity.