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java.lang.NullPointerException: 	at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ConverterAccessor.initClassificationClasses(ConverterAccessor.java:159)	at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ConverterAccessor.(ConverterAccessor.java:82)	at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.initPersistenceUnitClasses(MetadataProcessor.java:364)	at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processEntityMappings(MetadataProcessor.java:559)	at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:581)	at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1869)	at org.eclipse.persistence.jpa.PersistenceProvider.createContainerEntityManagerFactory(PersistenceProvider.java:322)	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:288)	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310)	at org.kuali.rice.krad.data.jpa.KradEntityManagerFactoryBean.afterPropertiesSet(KradEntityManagerFactoryBean.java:207)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117)	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922)	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)	at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:197)	at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:172)	at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:158)	at org.kuali.rice.krad.data.jpa.eclipselink.KradEclipseLinkEntityManagerFactoryBeanTest.loadContext(KradEclipseLinkEntityManagerFactoryBeanTest.java:93)	at org.kuali.rice.krad.data.jpa.eclipselink.KradEclipseLinkEntityManagerFactoryBeanTest.testJta(KradEclipseLinkEntityManagerFactoryBeanTest.java:139)