我目前正在构建一个Quarkus后端，不知道如何Map具有附加属性的ManyToMany关系。假设我有一个CorporationEntity和一个AddressEntity，我想用ManyToMany关系和一个附加属性AddressTypeMap这两个实体。我真的不知道该怎么做。
这是我目前拥有的，但由于Map错误，构建崩溃：
GenericEntity.java

@MappedSuperclass
public class GenericEntity extends PanacheEntity {
  public LocalDate createdDate;
  public LocalDate lastRevision;
}

CorporationEntity.java

@Entity
public class CorporationEntity extends GenericEntity {
  @ManyToOne public BuildingEntity airport;
  @ManyToOne public CustomerEntity customer;
  // other attributes...

CorporationHasAddressEntity.java

@Entity
public class CorporationHasAddressEntity extends PanacheEntityBase {
  @EmbeddedId
  CorporationHasAddressKey id;

  @ManyToOne
  @JoinColumn(name = "addressType_id")
  public AddressTypeEntity addressType;
}

CorporationHasAddressKey.java

@Embeddable
public class CorporationHasAddressKey implements Serializable {
  @ManyToOne
  @JoinColumn(name = "corporation_id")
  protected CorporationEntity corporation;

  @ManyToOne
  @JoinColumn(name = "address_id")
  protected AddressEntity address;
}

这是尝试构建时的例外：

java.lang.NullPointerException: Cannot invoke "org.hibernate.mapping.PersistentClass.getTable()" because "classMapping" is null

编辑：如果我调整CorporationHasAddressEntity来扩展GenericEntity，那么构建成功，但是CorporationHasAddressEntity采用PanacheEntity的ID，这只是一个整数。