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org.hibernate.MappingException: property mapping has wrong number of columns: com.usertyperegistration.Foo.bar type: org.joda.time.Interval	at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:484)	at org.hibernate.mapping.RootClass.validate(RootClass.java:270)	at org.hibernate.cfg.Configuration.validate(Configuration.java:1324)	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1786)	at org.hibernate.ejb.EntityManagerFactoryImpl.(EntityManagerFactoryImpl.java:96)	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)	at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:899)	at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:59)	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)	at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)	at com.usertyperegistration.FooTest.setUpClass(FooTest.java:29)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:597)	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)