Issue with @ConfigurationProperties, @Validated and @NotNull

[ThanksForAllTheFish]

Since Spring Boot 1.5, it is suggested to annotated configuration properties with @Validated. Unfortunately, it seems this is not possible to use @javax.validation.constraints.NotNull when spring-cloud-starter-kubernetes is in the classpath. As far as I can tell, only @NotNull (and @NotEmpty, @NotBlank and other validation annotations dependent on @NotNull) are affected

I have created a very small project to reproduce the issue: https://github.com/ThanksForAllTheFish/kube-cloud-sample

Quick workaround for the moment is to remove @Validated as it is not mandatory yet, but in the future this is going to change