在我的代码下面，我在使用Hibernate和与额外列的多对多关系时遇到了麻烦：

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = true)
@Entity
@Table(schema = "XXX", name = "YYY")
@Audited
public class TransactionEntity extends AbstractBaseEntity {

  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  @Column(insertable = false, updatable = false)
  private Long transactionId;

  // fields

  @OneToMany(mappedBy = "transaction", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
  private List<TransactionTagEntity> tags;
}

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = true)
@Entity
@Table(schema = "XXX", name = "ZZZ")
@Audited
public class TagEntity extends AbstractBaseEntity {

  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  @Column(insertable = false, updatable = false)
  private Long tagId;

  // fields
}

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = true)
@Entity
@Table(schema = "XXX", name = "YYY_ZZZ")
@Audited
public class TransactionTagEntity extends AbstractBaseEntity {

  @EmbeddedId
  private TransactionTagPk pk;

  @ManyToOne
  @MapsId("transactionId")
  @JoinColumn(name = "transaction_id", referencedColumnName = "transactionId", insertable = false, updatable = false)
  private TransactionEntity transaction;

  @ManyToOne
  @MapsId("tagId")
  @JoinColumn(name = "tag_id", referencedColumnName = "tagId", insertable = false, updatable = false)
  private TagEntity tag;
}

@AllArgsConstructor
@NoArgsConstructor
@Data
@EqualsAndHashCode(callSuper = false)
@Embeddable
public class TransactionTagPk implements Serializable {

  @Column(name = "transaction_id")
  private Long transactionId;

  @Column(name = "tag_id")
  private Long tagId;
}

在持久性适配器中，我有一个接收事务ID和现有标记ID列表的方法。首先，我通过事务ID查找事务，然后搜索标记并构建事务实体列表。然后，我删除与事务关联的所有标记并插入新创建的列表。最后，我保存事务。
我的代码如下：

@Override
public void addTags(long transactionId, List<Long> tagsId) {
  Optional<TransactionEntity> transactionEntity = transactionRepository.findById(transactionId);
  if (transactionEntity.isEmpty()) {
    throw new ForeignKeyConstraintViolatedException("Transaction not found");
  }

  List<TransactionTagEntity> transactionTagEntityList = tagsId.stream().map(tagId -> buildTransactionTagEntity(transactionEntity.get(), tagId)).toList();
  transactionEntity.get().getTags().clear();
  transactionEntity.get().setTags(transactionTagEntityList);

  transactionRepository.save(transactionEntity.get());
}

private TransactionTagEntity buildTransactionTagEntity(final TransactionEntity entity, final long tagId) {
  TagEntity tagEntity = tagRepository.findById(tagId).orElseThrow(() -> new ForeignKeyConstraintViolatedException("Tag not found"));
  return new TransactionTagEntity(entity, tagEntity);
}

执行这段代码时，我在保存操作时遇到以下错误：

jakarta.servlet.ServletException: Request processing failed: java.lang.UnsupportedOperationException

我哪里做错了？