Spring Cloud Contract support is broken in 4.x

[kwonglau]

https://docs.spring.io/spring-cloud-contract/docs/3.1.5/reference/html/project-features.html#contract-dsl-output-triggered-message

https://docs.spring.io/spring-cloud-contract/docs/current/reference/html/project-features.html#contract-dsl-messaging-top-level

The "Output Triggered by a Message" feature was removed.

spring-cloud/spring-cloud-contract#1837

[cer]

Yes. This change is a pain. I plan to work on supporting Spring Cloud Contract 4.x.

[NRuslanR]

The MessageVerifier interface was removed from newer spring cloud contract verifier versions as well. So EventuateTramMessageVerifier needs to implement both MessageVerifierReceiver and MessageVerifierSender interfaces instead.