Block returns null

Hi guys,
I need to perform several commands synchronously and return the response, but all commands after block return 'null', for instance:
CreateServiceInstanceResponse createServiceInstanceResponse = cloudFoundryOperations.services().createInstance(serviceInstanceRequestObj).cast(CreateServiceInstanceResponse.class).block();

As I see in CF, the command blocks and waits to Service Instance creation, but at the end the 'createServiceInstanceResponse' object is null.

Is this code incorrect or this is a bug?

Thank you in advance,
Yan

cloudFoundryOperations.services().createInstance(...).cast(CreateServiceInstanceResponse.class).block() から始めて、サービスインスタンスの作成パスを追跡します。同期呼び出しを再現し、返された値を API の想定される動作と比較します。null の結果が説明され、適切なテストで動作が検証されるか、想定どおりであることが確認できれば完了です。