org.hibernate.MappingException: Unknown entity: com.example.hibernate.bugs.inherited.MappedSupperclass
	at org.hibernate.internal.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:776)
	at org.hibernate.jpa.internal.metamodel.Helper.resolveAttributeSource(Helper.java:47)
	at org.hibernate.jpa.internal.metamodel.Helper.resolveType(Helper.java:96)
	at org.hibernate.jpa.graph.internal.AttributeNodeImpl.internalMakeSubgraph(AttributeNodeImpl.java:123)
	at org.hibernate.jpa.graph.internal.AttributeNodeImpl.makeSubgraph(AttributeNodeImpl.java:98)
	at org.hibernate.jpa.graph.internal.AbstractGraphNode.addSubgraph(AbstractGraphNode.java:159)
	at org.hibernate.jpa.graph.internal.EntityGraphImpl.addSubgraph(EntityGraphImpl.java:81)
	at org.hibernate.jpa.graph.internal.EntityGraphImpl.addSubgraph(EntityGraphImpl.java:26)
	at com.example.hibernate.bugs.inherited.InheritedEntityGraphTest.attributeNodeInheritanceTest(InheritedEntityGraphTest.java:71)