anchor.diff:  
     @Bean
     public Function<Flux<String>, Flux<String>> uppercase() {
  -    return value -> value.toUppercase();
  +    return flux -> flux.map(value -> value.toUpperCase());
     }
   
     public static void main(String[] args) {
       SpringApplication.run(Application.class, args);
     }
  -
   }
   ```
   
  
positive.code: 
  ```
  $ java -jar spring-cloud-function-samples/spring-cloud-function-sample/target/*.jar
  ...
  ```
  
  This runs the app and exposes its functions over HTTP, so you can
  
negative.code: Build from the command line (and "install" the samples):
  
  ```
  $ ./mvnw clean install
  ```
  
  (If you like to YOLO add `-DskipTests`.)
  