更新到 Spring Boot 2.2 后如何修复 mongo 索引创建问题？

Question

在以前的 Spring Boot 版本（2.1.9）上一切正常。我已将其更新为2.2.2.RELEASE（使用依赖管理插件），并开始出现错误：

org.springframework.dao.DataIntegrityViolationException:
Cannot create index for '' in collection 'testDTO' with keys 'Document{{_id=1, version=1}}' and
options 'Document{{name=optimistic_concurrency_idx}}'.;
nested exception is com.mongodb.MongoCommandException:
Command failed with error 67 (CannotCreateIndex): 'Unknown index plugin '1'' on server mongo:27017.
The full response is { "ok" : 0.0, "errmsg" : "Unknown index plugin '1'", "code" : 67, "codeName" : "CannotCreateIndex" }

我进行了搜索，但没有找到任何方法来修复它。除此之外，我在日志中还有消息：

Registering converter from class java.time.LocalDateTime to class java.time.Instant as reading converter although it doesn't convert from a store-supported type! You might wanna check you annotation setup at the converter implementation.
Registering converter from class java.time.Instant to class java.time.LocalDateTime as reading converter although it doesn't convert from a store-supported type! You might wanna check you annotation setup at the converter implementation.

但正如我在这里读到的，这并不那么重要。此外，此日志消息看起来也不重要：

Automatic index creation will be disabled by default as of Spring Data MongoDB 3.x.\n\tPlease use 'MongoMappingContext#setAutoIndexCreation(boolean)' or override 'MongoConfigurationSupport#autoIndexCreation()' to be explicit.\n\tHowever, we recommend setting up indices manually in an application ready block. You may use index derivation there as well.\n\n\t> -----------------------------------------------------------------------------------------\n\t> @EventListener(ApplicationReadyEvent.class)\n\t> public void initIndicesAfterStartup() {\n\t>\n\t>     IndexOperations indexOps = mongoTemplate.indexOps(DomainType.class);\n\t>\n\t>     IndexResolver resolver = new MongoPersistentEntityIndexResolver(mongoMappingContext);\n\t>     resolver.resolveIndexFor(DomainType.class).forEach(indexOps::ensureIndex);\n\t> }\n\t> -----------------------------------------------------------------------------------------\n","component":"org.springframework.data.mongodb.core.index.MongoPersistentEntityIndexCreator

因为我已添加spring.data.mongodb.auto-index-creation: true到我的application.yml，但该消息仍然存在，因为它没有任何标志检查。

我尝试降级spring-data-mongo（以及boot-starter），但它无法配置ClassNotFound异常的上下文。

有人遇到过这个问题吗？怎么解决呢？