AuditException / NullPointerException when loading audited entity with embeddable referencing non-audited entity in Hibernate

Issue

• Defined an audited entity which has an association to an audited embeddable which, in turn, contains a reference to a non-audited entity

  @Audited
  public class Parent {
      ...
      @ElementCollection
      @CollectionTable(name = "items", joinColumns = @JoinColumn(name = "PRODUCT_ID"))
      @OrderColumn(name = "ORDER_COL")
      @Audited
      private List<Item> items = new ArrayList<Item>();
  }
  
  @Embeddable
  @Audited
  public class Item {
      ...
      @ManyToOne
      @Audited(targetAuditMode = RelationTargetAuditMode.NOT_AUDITED)
      private Type type;
  }
  

• The following exception is raised when loading the "parent" entity

  org.hibernate.envers.exception.AuditException: java.lang.NullPointerException
      at org.hibernate.envers.internal.entities.mapper.relation.component.MiddleEmbeddableComponentMapper.mapToObjectFromFullMap(MiddleEmbeddableComponentMapper.java:55)
      at org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.ListCollectionInitializor.addToCollection(ListCollectionInitializor.java:66)
      ...
      at org.hibernate.envers.internal.reader.FirstLevelCache.putOnEntityNameCache(FirstLevelCache.java:87)
      at org.hibernate.envers.internal.entities.EntityInstantiator.createInstanceFromVersionsEntity(EntityInstantiator.java:111)
      at org.hibernate.envers.internal.entities.EntityInstantiator.addInstancesFromVersionsEntities(EntityInstantiator.java:164)
      at org.hibernate.envers.query.internal.impl.AbstractAuditQuery.applyProjections(AbstractAuditQuery.java:336)
      at org.hibernate.envers.query.internal.impl.EntitiesAtRevisionQuery.list(EntitiesAtRevisionQuery.java:128)
      at org.hibernate.envers.query.internal.impl.AbstractAuditQuery.getSingleResult(AbstractAuditQuery.java:111)
      at org.hibernate.envers.internal.reader.AuditReaderImpl.find(AuditReaderImpl.java:124)
      at org.hibernate.envers.internal.reader.AuditReaderImpl.find(AuditReaderImpl.java:93)
      at org.hibernate.envers.internal.reader.AuditReaderImpl.find(AuditReaderImpl.java:87)
      ...