java.lang.ClassCastException: org.hibernate.mapping.Formula cannot be cast to org.hibernate.mapping.Column
	at org.hibernate.mapping.SimpleValue.createParameterImpl(SimpleValue.java:499)
	at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:324)
	at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:310)
	at org.hibernate.mapping.Property.isValid(Property.java:241)
	at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:496)
	at org.hibernate.mapping.RootClass.validate(RootClass.java:270)
	at org.hibernate.cfg.Configuration.validate(Configuration.java:1358)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1849)
	at org.hibernate.testing.junit4.BaseCoreFunctionalTestCase.buildSessionFactory(BaseCoreFunctionalTestCase.java:149)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.hibernate.testing.junit4.TestClassMetadata.performCallbackInvocation(TestClassMetadata.java:205)
	... 15 more