如何在Hibernate JPA @NamedEntityGraph中引用继承的属性？

我的项目中有以下映射：

@Embeddable
class LineItem {
    ...
}

@Entity
abstract class Invoice {
    ...
    @ElementCollection @OrderColumn @NotEmpty
    List<LineItem> lineItems = []
    ...
}

@Entity
class PurchaseInvoice extends Invoice {
    ...
    @OneToOne(cascade=CascadeType.ALL, orphanRemoval=true)
    Payment payment
    ...
}

@Entity
class Payment {
    ...
    @ElementCollection @OrderColumn
    List<PaymentTerm> paymentTerms = []
    ...
}

@Embeddable
class PaymentTerm {
    ...
}

默认情况下，所有集合关联都是惰性的。我的目标是创建一个实体图，该图可用于热切加载PurchaseInvoice.lineItems和PurchaseInvoice.payment.paymentTerms。

如果我定义以下实体图：

@NamedEntityGraph(name='PurchaseInvoiceWithDetail', attributeNodes = [
     @NamedAttributeNode(value='payment', subgraph='payment'),
     @NamedAttributeNode(value='lineItems')
], subgraphs = [
     @NamedSubgraph(name='payment', type=Payment, attributeNodes = [
         @NamedAttributeNode(value='paymentTerms')
     ])
])
@Entity
class PurchaseInvoice extends Invoice

我收到以下无法建立实体管理器的工厂错误：

java.lang.IllegalArgumentException: Unable to locate Attribute  with the given name [lineItems] on this ManagedType [PurchaseInvoice]

在JPA 2.1实体图中引用超类（或子类）中的属性的正确方法是什么？