anchor.diff:  	.expectNext("Hi user")
   	.verifyComplete();
   ----
  -====
   
   .Kotlin
   [source,kotlin,role="secondary"]
  
positive.code: Spring Security supports method security by using https://projectreactor.io/docs/core/release/reference/#context[Reactor's Context], which is set up by `ReactiveSecurityContextHolder`.
  The following example shows how to retrieve the currently logged in user's message:
  
  [NOTE]
  ====
  For this to work the return type of the method must be a `org.reactivestreams.Publisher` (i.e. `Mono`/`Flux`) or the function must be a Kotlin coroutine function.
  This is necessary to integrate with Reactor's `Context`.
  
  ====
  
negative.code: 	}
  }
  ----
  
  .Kotlin
  [source,kotlin,role="secondary"]
  